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Finding the Fourth Proportional to 478,159.31, 659,859.84 and 263,298.86

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Solution

The fourth proportional to 478,159.31, 659,859.84 and 263,298.86 is: 363,352.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,159.31 : 659,859.84 = 263,298.86 : x
  2. Step 2: Convert to fraction form
    478,159.31/659,859.84 = 263,298.86/x
  3. Step 3: Cross multiply
    478,159.31x = 659,859.84 × 263,298.86
  4. Step 4: Simplify right side
    478,159.31x = 173,740,343,631.78
  5. Step 5: Solve for x
    x = 173,740,343,631.78/478,159.31
  6. Step 6: Final answer
    x = 363,352.42

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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.