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Finding the Fourth Proportional to 291,471.06, 402,230.87 and 168,987.24

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Solution

The fourth proportional to 291,471.06, 402,230.87 and 168,987.24 is: 233,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,471.06 : 402,230.87 = 168,987.24 : x
  2. Step 2: Convert to fraction form
    291,471.06/402,230.87 = 168,987.24/x
  3. Step 3: Cross multiply
    291,471.06x = 402,230.87 × 168,987.24
  4. Step 4: Simplify right side
    291,471.06x = 67,971,882,975.41
  5. Step 5: Solve for x
    x = 67,971,882,975.41/291,471.06
  6. Step 6: Final answer
    x = 233,202.86

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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.