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Finding the Fourth Proportional to 252,655.20, 378,982.80 and 162,842.40

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Solution

The fourth proportional to 252,655.20, 378,982.80 and 162,842.40 is: 244,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,655.20 : 378,982.80 = 162,842.40 : x
  2. Step 2: Convert to fraction form
    252,655.20/378,982.80 = 162,842.40/x
  3. Step 3: Cross multiply
    252,655.20x = 378,982.80 × 162,842.40
  4. Step 4: Simplify right side
    252,655.20x = 61,714,468,710.72
  5. Step 5: Solve for x
    x = 61,714,468,710.72/252,655.20
  6. Step 6: Final answer
    x = 244,263.60

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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.