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Finding the Fourth Proportional to 366,514.80, 549,772.20 and 129,881.40

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Solution

The fourth proportional to 366,514.80, 549,772.20 and 129,881.40 is: 194,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,514.80 : 549,772.20 = 129,881.40 : x
  2. Step 2: Convert to fraction form
    366,514.80/549,772.20 = 129,881.40/x
  3. Step 3: Cross multiply
    366,514.80x = 549,772.20 × 129,881.40
  4. Step 4: Simplify right side
    366,514.80x = 71,405,183,017.08
  5. Step 5: Solve for x
    x = 71,405,183,017.08/366,514.80
  6. Step 6: Final answer
    x = 194,822.10

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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.