Home / 317,565.18-438,274.82-181,611.78

Finding the Fourth Proportional to 317,565.18, 438,274.82 and 181,611.78

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Solution

The fourth proportional to 317,565.18, 438,274.82 and 181,611.78 is: 250,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,565.18 : 438,274.82 = 181,611.78 : x
  2. Step 2: Convert to fraction form
    317,565.18/438,274.82 = 181,611.78/x
  3. Step 3: Cross multiply
    317,565.18x = 438,274.82 × 181,611.78
  4. Step 4: Simplify right side
    317,565.18x = 79,595,869,281.32
  5. Step 5: Solve for x
    x = 79,595,869,281.32/317,565.18
  6. Step 6: Final answer
    x = 250,644.20

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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.