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Finding the Fourth Proportional to 610,270.56, 915,280.59 and 231,060.78

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Solution

The fourth proportional to 610,270.56, 915,280.59 and 231,060.78 is: 346,543.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,270.56 : 915,280.59 = 231,060.78 : x
  2. Step 2: Convert to fraction form
    610,270.56/915,280.59 = 231,060.78/x
  3. Step 3: Cross multiply
    610,270.56x = 915,280.59 × 231,060.78
  4. Step 4: Simplify right side
    610,270.56x = 211,485,447,044.26
  5. Step 5: Solve for x
    x = 211,485,447,044.26/610,270.56
  6. Step 6: Final answer
    x = 346,543.75

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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.