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Finding the Fourth Proportional to 252,303.52, 378,345.39 and 72,349.18

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Solution

The fourth proportional to 252,303.52, 378,345.39 and 72,349.18 is: 108,492.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,303.52 : 378,345.39 = 72,349.18 : x
  2. Step 2: Convert to fraction form
    252,303.52/378,345.39 = 72,349.18/x
  3. Step 3: Cross multiply
    252,303.52x = 378,345.39 × 72,349.18
  4. Step 4: Simplify right side
    252,303.52x = 27,372,978,723.28
  5. Step 5: Solve for x
    x = 27,372,978,723.28/252,303.52
  6. Step 6: Final answer
    x = 108,492.26

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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.