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Finding the Fourth Proportional to 145,380.08, 218,070.04 and 38,764.08

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Solution

The fourth proportional to 145,380.08, 218,070.04 and 38,764.08 is: 58,146.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,380.08 : 218,070.04 = 38,764.08 : x
  2. Step 2: Convert to fraction form
    145,380.08/218,070.04 = 38,764.08/x
  3. Step 3: Cross multiply
    145,380.08x = 218,070.04 × 38,764.08
  4. Step 4: Simplify right side
    145,380.08x = 8,453,284,476.16
  5. Step 5: Solve for x
    x = 8,453,284,476.16/145,380.08
  6. Step 6: Final answer
    x = 58,146.10

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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.