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Finding the Fourth Proportional to 434,153.60, 651,327.60 and 167,890.40

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Solution

The fourth proportional to 434,153.60, 651,327.60 and 167,890.40 is: 251,873.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,153.60 : 651,327.60 = 167,890.40 : x
  2. Step 2: Convert to fraction form
    434,153.60/651,327.60 = 167,890.40/x
  3. Step 3: Cross multiply
    434,153.60x = 651,327.60 × 167,890.40
  4. Step 4: Simplify right side
    434,153.60x = 109,351,651,295.04
  5. Step 5: Solve for x
    x = 109,351,651,295.04/434,153.60
  6. Step 6: Final answer
    x = 251,873.19

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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.