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Finding the Fourth Proportional to 215,877.70, 323,719.35 and 97,488.10

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Solution

The fourth proportional to 215,877.70, 323,719.35 and 97,488.10 is: 146,188.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,877.70 : 323,719.35 = 97,488.10 : x
  2. Step 2: Convert to fraction form
    215,877.70/323,719.35 = 97,488.10/x
  3. Step 3: Cross multiply
    215,877.70x = 323,719.35 × 97,488.10
  4. Step 4: Simplify right side
    215,877.70x = 31,558,784,364.74
  5. Step 5: Solve for x
    x = 31,558,784,364.74/215,877.70
  6. Step 6: Final answer
    x = 146,188.26

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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.