Home / 442,154.60-663,361.05-142,628.53

Finding the Fourth Proportional to 442,154.60, 663,361.05 and 142,628.53

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Solution

The fourth proportional to 442,154.60, 663,361.05 and 142,628.53 is: 213,984.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,154.60 : 663,361.05 = 142,628.53 : x
  2. Step 2: Convert to fraction form
    442,154.60/663,361.05 = 142,628.53/x
  3. Step 3: Cross multiply
    442,154.60x = 663,361.05 × 142,628.53
  4. Step 4: Simplify right side
    442,154.60x = 94,614,211,420.76
  5. Step 5: Solve for x
    x = 94,614,211,420.76/442,154.60
  6. Step 6: Final answer
    x = 213,984.46

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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.