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Finding the Fourth Proportional to 553,877.48, 830,815.92 and 133,153.24

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Solution

The fourth proportional to 553,877.48, 830,815.92 and 133,153.24 is: 199,729.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,877.48 : 830,815.92 = 133,153.24 : x
  2. Step 2: Convert to fraction form
    553,877.48/830,815.92 = 133,153.24/x
  3. Step 3: Cross multiply
    553,877.48x = 830,815.92 × 133,153.24
  4. Step 4: Simplify right side
    553,877.48x = 110,625,831,591.58
  5. Step 5: Solve for x
    x = 110,625,831,591.58/553,877.48
  6. Step 6: Final answer
    x = 199,729.79

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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.