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Finding the Fourth Proportional to 285,312.07, 427,337.29 and 195,141.07

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Solution

The fourth proportional to 285,312.07, 427,337.29 and 195,141.07 is: 292,280.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,312.07 : 427,337.29 = 195,141.07 : x
  2. Step 2: Convert to fraction form
    285,312.07/427,337.29 = 195,141.07/x
  3. Step 3: Cross multiply
    285,312.07x = 427,337.29 × 195,141.07
  4. Step 4: Simplify right side
    285,312.07x = 83,391,055,197.08
  5. Step 5: Solve for x
    x = 83,391,055,197.08/285,312.07
  6. Step 6: Final answer
    x = 292,280.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.