Home / 284,031.28-391,964.43-156,710.62

Finding the Fourth Proportional to 284,031.28, 391,964.43 and 156,710.62

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Solution

The fourth proportional to 284,031.28, 391,964.43 and 156,710.62 is: 216,261.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,031.28 : 391,964.43 = 156,710.62 : x
  2. Step 2: Convert to fraction form
    284,031.28/391,964.43 = 156,710.62/x
  3. Step 3: Cross multiply
    284,031.28x = 391,964.43 × 156,710.62
  4. Step 4: Simplify right side
    284,031.28x = 61,424,988,843.25
  5. Step 5: Solve for x
    x = 61,424,988,843.25/284,031.28
  6. Step 6: Final answer
    x = 216,261.35

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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.