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Finding the Fourth Proportional to 478,254.82, 717,426.15 and 123,270.10

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Solution

The fourth proportional to 478,254.82, 717,426.15 and 123,270.10 is: 184,916.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,254.82 : 717,426.15 = 123,270.10 : x
  2. Step 2: Convert to fraction form
    478,254.82/717,426.15 = 123,270.10/x
  3. Step 3: Cross multiply
    478,254.82x = 717,426.15 × 123,270.10
  4. Step 4: Simplify right side
    478,254.82x = 88,437,193,253.12
  5. Step 5: Solve for x
    x = 88,437,193,253.12/478,254.82
  6. Step 6: Final answer
    x = 184,916.47

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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.