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Finding the Fourth Proportional to 317,388.20, 437,967.42 and 181,395.16

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Solution

The fourth proportional to 317,388.20, 437,967.42 and 181,395.16 is: 250,309.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,388.20 : 437,967.42 = 181,395.16 : x
  2. Step 2: Convert to fraction form
    317,388.20/437,967.42 = 181,395.16/x
  3. Step 3: Cross multiply
    317,388.20x = 437,967.42 × 181,395.16
  4. Step 4: Simplify right side
    317,388.20x = 79,445,170,225.69
  5. Step 5: Solve for x
    x = 79,445,170,225.69/317,388.20
  6. Step 6: Final answer
    x = 250,309.15

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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.