Home / 372,445.14-513,938.72-209,064.21

Finding the Fourth Proportional to 372,445.14, 513,938.72 and 209,064.21

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Solution

The fourth proportional to 372,445.14, 513,938.72 and 209,064.21 is: 288,488.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,445.14 : 513,938.72 = 209,064.21 : x
  2. Step 2: Convert to fraction form
    372,445.14/513,938.72 = 209,064.21/x
  3. Step 3: Cross multiply
    372,445.14x = 513,938.72 × 209,064.21
  4. Step 4: Simplify right side
    372,445.14x = 107,446,195,416.96
  5. Step 5: Solve for x
    x = 107,446,195,416.96/372,445.14
  6. Step 6: Final answer
    x = 288,488.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.