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Finding the Fourth Proportional to 431,389.51, 595,318.10 and 240,398.71

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Solution

The fourth proportional to 431,389.51, 595,318.10 and 240,398.71 is: 331,750.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,389.51 : 595,318.10 = 240,398.71 : x
  2. Step 2: Convert to fraction form
    431,389.51/595,318.10 = 240,398.71/x
  3. Step 3: Cross multiply
    431,389.51x = 595,318.10 × 240,398.71
  4. Step 4: Simplify right side
    431,389.51x = 143,113,703,279.65
  5. Step 5: Solve for x
    x = 143,113,703,279.65/431,389.51
  6. Step 6: Final answer
    x = 331,750.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.