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Finding the Fourth Proportional to 610,548.66, 915,866.72 and 161,265.05

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Solution

The fourth proportional to 610,548.66, 915,866.72 and 161,265.05 is: 241,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,548.66 : 915,866.72 = 161,265.05 : x
  2. Step 2: Convert to fraction form
    610,548.66/915,866.72 = 161,265.05/x
  3. Step 3: Cross multiply
    610,548.66x = 915,866.72 × 161,265.05
  4. Step 4: Simplify right side
    610,548.66x = 147,697,292,394.14
  5. Step 5: Solve for x
    x = 147,697,292,394.14/610,548.66
  6. Step 6: Final answer
    x = 241,909.13

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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.