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Finding the Fourth Proportional to 610,218.42, 915,115.25 and 250,287.05

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Solution

The fourth proportional to 610,218.42, 915,115.25 and 250,287.05 is: 375,343.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,218.42 : 915,115.25 = 250,287.05 : x
  2. Step 2: Convert to fraction form
    610,218.42/915,115.25 = 250,287.05/x
  3. Step 3: Cross multiply
    610,218.42x = 915,115.25 × 250,287.05
  4. Step 4: Simplify right side
    610,218.42x = 229,041,492,382.65
  5. Step 5: Solve for x
    x = 229,041,492,382.65/610,218.42
  6. Step 6: Final answer
    x = 375,343.46

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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.