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Finding the Fourth Proportional to 284,101.32, 392,048.28 and 156,775.20

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Solution

The fourth proportional to 284,101.32, 392,048.28 and 156,775.20 is: 216,343.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,101.32 : 392,048.28 = 156,775.20 : x
  2. Step 2: Convert to fraction form
    284,101.32/392,048.28 = 156,775.20/x
  3. Step 3: Cross multiply
    284,101.32x = 392,048.28 × 156,775.20
  4. Step 4: Simplify right side
    284,101.32x = 61,463,447,506.66
  5. Step 5: Solve for x
    x = 61,463,447,506.66/284,101.32
  6. Step 6: Final answer
    x = 216,343.41

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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.