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Finding the Fourth Proportional to 165,000.30, 247,063.05 and 130,008.30

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Solution

The fourth proportional to 165,000.30, 247,063.05 and 130,008.30 is: 194,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,000.30 : 247,063.05 = 130,008.30 : x
  2. Step 2: Convert to fraction form
    165,000.30/247,063.05 = 130,008.30/x
  3. Step 3: Cross multiply
    165,000.30x = 247,063.05 × 130,008.30
  4. Step 4: Simplify right side
    165,000.30x = 32,120,247,123.32
  5. Step 5: Solve for x
    x = 32,120,247,123.32/165,000.30
  6. Step 6: Final answer
    x = 194,667.81

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1.5x scale

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.