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Finding the Fourth Proportional to 346,575.14, 520,062.39 and 146,879.78

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Solution

The fourth proportional to 346,575.14, 520,062.39 and 146,879.78 is: 220,404.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,575.14 : 520,062.39 = 146,879.78 : x
  2. Step 2: Convert to fraction form
    346,575.14/520,062.39 = 146,879.78/x
  3. Step 3: Cross multiply
    346,575.14x = 520,062.39 × 146,879.78
  4. Step 4: Simplify right side
    346,575.14x = 76,386,649,429.47
  5. Step 5: Solve for x
    x = 76,386,649,429.47/346,575.14
  6. Step 6: Final answer
    x = 220,404.30

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1.5x scale

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.