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Finding the Fourth Proportional to 291,394.40, 437,153.76 and 165,095.15

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Solution

The fourth proportional to 291,394.40, 437,153.76 and 165,095.15 is: 247,677.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,394.40 : 437,153.76 = 165,095.15 : x
  2. Step 2: Convert to fraction form
    291,394.40/437,153.76 = 165,095.15/x
  3. Step 3: Cross multiply
    291,394.40x = 437,153.76 × 165,095.15
  4. Step 4: Simplify right side
    291,394.40x = 72,171,963,394.50
  5. Step 5: Solve for x
    x = 72,171,963,394.50/291,394.40
  6. Step 6: Final answer
    x = 247,677.94

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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.