Home / 423,153.44-634,325.28-156,842.36

Finding the Fourth Proportional to 423,153.44, 634,325.28 and 156,842.36

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Solution

The fourth proportional to 423,153.44, 634,325.28 and 156,842.36 is: 235,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,153.44 : 634,325.28 = 156,842.36 : x
  2. Step 2: Convert to fraction form
    423,153.44/634,325.28 = 156,842.36/x
  3. Step 3: Cross multiply
    423,153.44x = 634,325.28 × 156,842.36
  4. Step 4: Simplify right side
    423,153.44x = 99,489,073,922.86
  5. Step 5: Solve for x
    x = 99,489,073,922.86/423,153.44
  6. Step 6: Final answer
    x = 235,113.47

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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.