Home / 217,329.52-299,915.76-126,748.32

Finding the Fourth Proportional to 217,329.52, 299,915.76 and 126,748.32

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Solution

The fourth proportional to 217,329.52, 299,915.76 and 126,748.32 is: 174,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,329.52 : 299,915.76 = 126,748.32 : x
  2. Step 2: Convert to fraction form
    217,329.52/299,915.76 = 126,748.32/x
  3. Step 3: Cross multiply
    217,329.52x = 299,915.76 × 126,748.32
  4. Step 4: Simplify right side
    217,329.52x = 38,013,818,721.52
  5. Step 5: Solve for x
    x = 38,013,818,721.52/217,329.52
  6. Step 6: Final answer
    x = 174,913.28

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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.