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Finding the Fourth Proportional to 215,193.92, 296,970.88 and 130,319.04

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Solution

The fourth proportional to 215,193.92, 296,970.88 and 130,319.04 is: 179,842.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,193.92 : 296,970.88 = 130,319.04 : x
  2. Step 2: Convert to fraction form
    215,193.92/296,970.88 = 130,319.04/x
  3. Step 3: Cross multiply
    215,193.92x = 296,970.88 × 130,319.04
  4. Step 4: Simplify right side
    215,193.92x = 38,700,959,989.56
  5. Step 5: Solve for x
    x = 38,700,959,989.56/215,193.92
  6. Step 6: Final answer
    x = 179,842.26

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1.5x scale

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.