Home / 423,074.10-634,611.15-142,562.10

Finding the Fourth Proportional to 423,074.10, 634,611.15 and 142,562.10

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Solution

The fourth proportional to 423,074.10, 634,611.15 and 142,562.10 is: 213,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,074.10 : 634,611.15 = 142,562.10 : x
  2. Step 2: Convert to fraction form
    423,074.10/634,611.15 = 142,562.10/x
  3. Step 3: Cross multiply
    423,074.10x = 634,611.15 × 142,562.10
  4. Step 4: Simplify right side
    423,074.10x = 90,471,498,227.42
  5. Step 5: Solve for x
    x = 90,471,498,227.42/423,074.10
  6. Step 6: Final answer
    x = 213,843.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.