Home / 347,830.60-521,918.70-137,475.40

Finding the Fourth Proportional to 347,830.60, 521,918.70 and 137,475.40

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Solution

The fourth proportional to 347,830.60, 521,918.70 and 137,475.40 is: 206,281.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,830.60 : 521,918.70 = 137,475.40 : x
  2. Step 2: Convert to fraction form
    347,830.60/521,918.70 = 137,475.40/x
  3. Step 3: Cross multiply
    347,830.60x = 521,918.70 × 137,475.40
  4. Step 4: Simplify right side
    347,830.60x = 71,750,982,049.98
  5. Step 5: Solve for x
    x = 71,750,982,049.98/347,830.60
  6. Step 6: Final answer
    x = 206,281.40

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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.