Home / 210,828.88-290,946.15-115,333.53

Finding the Fourth Proportional to 210,828.88, 290,946.15 and 115,333.53

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Solution

The fourth proportional to 210,828.88, 290,946.15 and 115,333.53 is: 159,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,828.88 : 290,946.15 = 115,333.53 : x
  2. Step 2: Convert to fraction form
    210,828.88/290,946.15 = 115,333.53/x
  3. Step 3: Cross multiply
    210,828.88x = 290,946.15 × 115,333.53
  4. Step 4: Simplify right side
    210,828.88x = 33,555,845,428.36
  5. Step 5: Solve for x
    x = 33,555,845,428.36/210,828.88
  6. Step 6: Final answer
    x = 159,161.52

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1.5x scale

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.