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Finding the Fourth Proportional to 229,871.45, 317,217.63 and 133,079.40

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Solution

The fourth proportional to 229,871.45, 317,217.63 and 133,079.40 is: 183,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,871.45 : 317,217.63 = 133,079.40 : x
  2. Step 2: Convert to fraction form
    229,871.45/317,217.63 = 133,079.40/x
  3. Step 3: Cross multiply
    229,871.45x = 317,217.63 × 133,079.40
  4. Step 4: Simplify right side
    229,871.45x = 42,215,132,893.04
  5. Step 5: Solve for x
    x = 42,215,132,893.04/229,871.45
  6. Step 6: Final answer
    x = 183,646.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.