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Finding the Fourth Proportional to 478,280.07, 717,171.00 and 178,514.12

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Solution

The fourth proportional to 478,280.07, 717,171.00 and 178,514.12 is: 267,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,280.07 : 717,171.00 = 178,514.12 : x
  2. Step 2: Convert to fraction form
    478,280.07/717,171.00 = 178,514.12/x
  3. Step 3: Cross multiply
    478,280.07x = 717,171.00 × 178,514.12
  4. Step 4: Simplify right side
    478,280.07x = 128,025,151,078.02
  5. Step 5: Solve for x
    x = 128,025,151,078.02/478,280.07
  6. Step 6: Final answer
    x = 267,678.21

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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.