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Finding the Fourth Proportional to 366,350.40, 549,590.40 and 129,830.40

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Solution

The fourth proportional to 366,350.40, 549,590.40 and 129,830.40 is: 194,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,350.40 : 549,590.40 = 129,830.40 : x
  2. Step 2: Convert to fraction form
    366,350.40/549,590.40 = 129,830.40/x
  3. Step 3: Cross multiply
    366,350.40x = 549,590.40 × 129,830.40
  4. Step 4: Simplify right side
    366,350.40x = 71,353,541,468.16
  5. Step 5: Solve for x
    x = 71,353,541,468.16/366,350.40
  6. Step 6: Final answer
    x = 194,768.56

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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.