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Finding the Fourth Proportional to 476,545.55, 657,640.40 and 258,754.10

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Solution

The fourth proportional to 476,545.55, 657,640.40 and 258,754.10 is: 357,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,545.55 : 657,640.40 = 258,754.10 : x
  2. Step 2: Convert to fraction form
    476,545.55/657,640.40 = 258,754.10/x
  3. Step 3: Cross multiply
    476,545.55x = 657,640.40 × 258,754.10
  4. Step 4: Simplify right side
    476,545.55x = 170,167,145,243.67
  5. Step 5: Solve for x
    x = 170,167,145,243.67/476,545.55
  6. Step 6: Final answer
    x = 357,084.75

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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.