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Finding the Fourth Proportional to 605,612.08, 908,558.74 and 206,256.31

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Solution

The fourth proportional to 605,612.08, 908,558.74 and 206,256.31 is: 309,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,612.08 : 908,558.74 = 206,256.31 : x
  2. Step 2: Convert to fraction form
    605,612.08/908,558.74 = 206,256.31/x
  3. Step 3: Cross multiply
    605,612.08x = 908,558.74 × 206,256.31
  4. Step 4: Simplify right side
    605,612.08x = 187,395,974,079.91
  5. Step 5: Solve for x
    x = 187,395,974,079.91/605,612.08
  6. Step 6: Final answer
    x = 309,432.36

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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.