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Finding the Fourth Proportional to 576,614.08, 865,003.80 and 177,288.40

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Solution

The fourth proportional to 576,614.08, 865,003.80 and 177,288.40 is: 265,958.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,614.08 : 865,003.80 = 177,288.40 : x
  2. Step 2: Convert to fraction form
    576,614.08/865,003.80 = 177,288.40/x
  3. Step 3: Cross multiply
    576,614.08x = 865,003.80 × 177,288.40
  4. Step 4: Simplify right side
    576,614.08x = 153,355,139,695.92
  5. Step 5: Solve for x
    x = 153,355,139,695.92/576,614.08
  6. Step 6: Final answer
    x = 265,958.02

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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.