Home / 462,101.12-693,217.80-142,280.05

Finding the Fourth Proportional to 462,101.12, 693,217.80 and 142,280.05

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Solution

The fourth proportional to 462,101.12, 693,217.80 and 142,280.05 is: 213,440.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,101.12 : 693,217.80 = 142,280.05 : x
  2. Step 2: Convert to fraction form
    462,101.12/693,217.80 = 142,280.05/x
  3. Step 3: Cross multiply
    462,101.12x = 693,217.80 × 142,280.05
  4. Step 4: Simplify right side
    462,101.12x = 98,631,063,244.89
  5. Step 5: Solve for x
    x = 98,631,063,244.89/462,101.12
  6. Step 6: Final answer
    x = 213,440.43

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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.