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Finding the Fourth Proportional to 284,246.02, 392,256.98 and 156,918.88

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Solution

The fourth proportional to 284,246.02, 392,256.98 and 156,918.88 is: 216,546.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,246.02 : 392,256.98 = 156,918.88 : x
  2. Step 2: Convert to fraction form
    284,246.02/392,256.98 = 156,918.88/x
  3. Step 3: Cross multiply
    284,246.02x = 392,256.98 × 156,918.88
  4. Step 4: Simplify right side
    284,246.02x = 61,552,525,973.78
  5. Step 5: Solve for x
    x = 61,552,525,973.78/284,246.02
  6. Step 6: Final answer
    x = 216,546.66

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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.