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Finding the Fourth Proportional to 284,286.02, 392,312.04 and 156,962.54

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Solution

The fourth proportional to 284,286.02, 392,312.04 and 156,962.54 is: 216,606.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,286.02 : 392,312.04 = 156,962.54 : x
  2. Step 2: Convert to fraction form
    284,286.02/392,312.04 = 156,962.54/x
  3. Step 3: Cross multiply
    284,286.02x = 392,312.04 × 156,962.54
  4. Step 4: Simplify right side
    284,286.02x = 61,578,294,270.98
  5. Step 5: Solve for x
    x = 61,578,294,270.98/284,286.02
  6. Step 6: Final answer
    x = 216,606.83

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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.