Home / 290,376,178.79-400,719,184.38-158,217,175.31

Finding the Fourth Proportional to 290,376,178.79, 400,719,184.38 and 158,217,175.31

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Solution

The fourth proportional to 290,376,178.79, 400,719,184.38 and 158,217,175.31 is: 218,339,733.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,376,178.79 : 400,719,184.38 = 158,217,175.31 : x
  2. Step 2: Convert to fraction form
    290,376,178.79/400,719,184.38 = 158,217,175.31/x
  3. Step 3: Cross multiply
    290,376,178.79x = 400,719,184.38 × 158,217,175.31
  4. Step 4: Simplify right side
    290,376,178.79x = 63,400,657,443,127,080
  5. Step 5: Solve for x
    x = 63,400,657,443,127,080/290,376,178.79
  6. Step 6: Final answer
    x = 218,339,733.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.