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Finding the Fourth Proportional to 664,601.04, 996,655.28 and 238,070.40

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Solution

The fourth proportional to 664,601.04, 996,655.28 and 238,070.40 is: 357,017.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,601.04 : 996,655.28 = 238,070.40 : x
  2. Step 2: Convert to fraction form
    664,601.04/996,655.28 = 238,070.40/x
  3. Step 3: Cross multiply
    664,601.04x = 996,655.28 × 238,070.40
  4. Step 4: Simplify right side
    664,601.04x = 237,274,121,171.71
  5. Step 5: Solve for x
    x = 237,274,121,171.71/664,601.04
  6. Step 6: Final answer
    x = 357,017.38

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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.