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Finding the Fourth Proportional to 366,523.28, 549,095.16 and 287,397.20

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Solution

The fourth proportional to 366,523.28, 549,095.16 and 287,397.20 is: 430,554.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,523.28 : 549,095.16 = 287,397.20 : x
  2. Step 2: Convert to fraction form
    366,523.28/549,095.16 = 287,397.20/x
  3. Step 3: Cross multiply
    366,523.28x = 549,095.16 × 287,397.20
  4. Step 4: Simplify right side
    366,523.28x = 157,808,411,517.55
  5. Step 5: Solve for x
    x = 157,808,411,517.55/366,523.28
  6. Step 6: Final answer
    x = 430,554.95

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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.