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Finding the Fourth Proportional to 347,539.60, 521,746.80 and 187,742.80

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Solution

The fourth proportional to 347,539.60, 521,746.80 and 187,742.80 is: 281,850.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,539.60 : 521,746.80 = 187,742.80 : x
  2. Step 2: Convert to fraction form
    347,539.60/521,746.80 = 187,742.80/x
  3. Step 3: Cross multiply
    347,539.60x = 521,746.80 × 187,742.80
  4. Step 4: Simplify right side
    347,539.60x = 97,954,205,123.04
  5. Step 5: Solve for x
    x = 97,954,205,123.04/347,539.60
  6. Step 6: Final answer
    x = 281,850.49

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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.