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Finding the Fourth Proportional to 404,287.08, 606,570.46 and 138,234.90

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Solution

The fourth proportional to 404,287.08, 606,570.46 and 138,234.90 is: 207,400.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,287.08 : 606,570.46 = 138,234.90 : x
  2. Step 2: Convert to fraction form
    404,287.08/606,570.46 = 138,234.90/x
  3. Step 3: Cross multiply
    404,287.08x = 606,570.46 × 138,234.90
  4. Step 4: Simplify right side
    404,287.08x = 83,849,206,881.05
  5. Step 5: Solve for x
    x = 83,849,206,881.05/404,287.08
  6. Step 6: Final answer
    x = 207,400.16

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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.