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Finding the Fourth Proportional to 373,254.60, 559,266.30 and 215,207.40

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Solution

The fourth proportional to 373,254.60, 559,266.30 and 215,207.40 is: 322,456.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,254.60 : 559,266.30 = 215,207.40 : x
  2. Step 2: Convert to fraction form
    373,254.60/559,266.30 = 215,207.40/x
  3. Step 3: Cross multiply
    373,254.60x = 559,266.30 × 215,207.40
  4. Step 4: Simplify right side
    373,254.60x = 120,358,246,330.62
  5. Step 5: Solve for x
    x = 120,358,246,330.62/373,254.60
  6. Step 6: Final answer
    x = 322,456.16

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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.