Home / 347,828.60-521,915.70-137,473.40

Finding the Fourth Proportional to 347,828.60, 521,915.70 and 137,473.40

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Solution

The fourth proportional to 347,828.60, 521,915.70 and 137,473.40 is: 206,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,828.60 : 521,915.70 = 137,473.40 : x
  2. Step 2: Convert to fraction form
    347,828.60/521,915.70 = 137,473.40/x
  3. Step 3: Cross multiply
    347,828.60x = 521,915.70 × 137,473.40
  4. Step 4: Simplify right side
    347,828.60x = 71,749,525,792.38
  5. Step 5: Solve for x
    x = 71,749,525,792.38/347,828.60
  6. Step 6: Final answer
    x = 206,278.40

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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.