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Finding the Fourth Proportional to 309,330.80, 463,726.20 and 119,920.40

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Solution

The fourth proportional to 309,330.80, 463,726.20 and 119,920.40 is: 179,775.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,330.80 : 463,726.20 = 119,920.40 : x
  2. Step 2: Convert to fraction form
    309,330.80/463,726.20 = 119,920.40/x
  3. Step 3: Cross multiply
    309,330.80x = 463,726.20 × 119,920.40
  4. Step 4: Simplify right side
    309,330.80x = 55,610,231,394.48
  5. Step 5: Solve for x
    x = 55,610,231,394.48/309,330.80
  6. Step 6: Final answer
    x = 179,775.93

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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.