Home / 217,417.84-299,909.52-136,717.60

Finding the Fourth Proportional to 217,417.84, 299,909.52 and 136,717.60

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Solution

The fourth proportional to 217,417.84, 299,909.52 and 136,717.60 is: 188,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,417.84 : 299,909.52 = 136,717.60 : x
  2. Step 2: Convert to fraction form
    217,417.84/299,909.52 = 136,717.60/x
  3. Step 3: Cross multiply
    217,417.84x = 299,909.52 × 136,717.60
  4. Step 4: Simplify right side
    217,417.84x = 41,002,909,791.55
  5. Step 5: Solve for x
    x = 41,002,909,791.55/217,417.84
  6. Step 6: Final answer
    x = 188,590.36

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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.