Home / 347,821.60-521,732.40-98,503.60

Finding the Fourth Proportional to 347,821.60, 521,732.40 and 98,503.60

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Solution

The fourth proportional to 347,821.60, 521,732.40 and 98,503.60 is: 147,755.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,821.60 : 521,732.40 = 98,503.60 : x
  2. Step 2: Convert to fraction form
    347,821.60/521,732.40 = 98,503.60/x
  3. Step 3: Cross multiply
    347,821.60x = 521,732.40 × 98,503.60
  4. Step 4: Simplify right side
    347,821.60x = 51,392,519,636.64
  5. Step 5: Solve for x
    x = 51,392,519,636.64/347,821.60
  6. Step 6: Final answer
    x = 147,755.40

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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.