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Finding the Fourth Proportional to 317,215.75, 437,756.84 and 181,291.87

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Solution

The fourth proportional to 317,215.75, 437,756.84 and 181,291.87 is: 250,182.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,215.75 : 437,756.84 = 181,291.87 : x
  2. Step 2: Convert to fraction form
    317,215.75/437,756.84 = 181,291.87/x
  3. Step 3: Cross multiply
    317,215.75x = 437,756.84 × 181,291.87
  4. Step 4: Simplify right side
    317,215.75x = 79,361,756,128.89
  5. Step 5: Solve for x
    x = 79,361,756,128.89/317,215.75
  6. Step 6: Final answer
    x = 250,182.27

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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.