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Finding the Fourth Proportional to 511,038.38, 766,728.18 and 226,689.70

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Solution

The fourth proportional to 511,038.38, 766,728.18 and 226,689.70 is: 340,110.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,038.38 : 766,728.18 = 226,689.70 : x
  2. Step 2: Convert to fraction form
    511,038.38/766,728.18 = 226,689.70/x
  3. Step 3: Cross multiply
    511,038.38x = 766,728.18 × 226,689.70
  4. Step 4: Simplify right side
    511,038.38x = 173,809,381,105.75
  5. Step 5: Solve for x
    x = 173,809,381,105.75/511,038.38
  6. Step 6: Final answer
    x = 340,110.23

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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.