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Finding the Fourth Proportional to 478,358.22, 660,134.34 and 263,498.25

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Solution

The fourth proportional to 478,358.22, 660,134.34 and 263,498.25 is: 363,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,358.22 : 660,134.34 = 263,498.25 : x
  2. Step 2: Convert to fraction form
    478,358.22/660,134.34 = 263,498.25/x
  3. Step 3: Cross multiply
    478,358.22x = 660,134.34 × 263,498.25
  4. Step 4: Simplify right side
    478,358.22x = 173,944,243,354.91
  5. Step 5: Solve for x
    x = 173,944,243,354.91/478,358.22
  6. Step 6: Final answer
    x = 363,627.58

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1.5x scale

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.