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Finding the Fourth Proportional to 478,050.87, 659,718.65 and 260,265.88

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Solution

The fourth proportional to 478,050.87, 659,718.65 and 260,265.88 is: 359,171.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,050.87 : 659,718.65 = 260,265.88 : x
  2. Step 2: Convert to fraction form
    478,050.87/659,718.65 = 260,265.88/x
  3. Step 3: Cross multiply
    478,050.87x = 659,718.65 × 260,265.88
  4. Step 4: Simplify right side
    478,050.87x = 171,702,253,996.03
  5. Step 5: Solve for x
    x = 171,702,253,996.03/478,050.87
  6. Step 6: Final answer
    x = 359,171.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.