Home / 389,539.89-584,385.57-149,636.25

Finding the Fourth Proportional to 389,539.89, 584,385.57 and 149,636.25

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Solution

The fourth proportional to 389,539.89, 584,385.57 and 149,636.25 is: 224,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,539.89 : 584,385.57 = 149,636.25 : x
  2. Step 2: Convert to fraction form
    389,539.89/584,385.57 = 149,636.25/x
  3. Step 3: Cross multiply
    389,539.89x = 584,385.57 × 149,636.25
  4. Step 4: Simplify right side
    389,539.89x = 87,445,265,248.91
  5. Step 5: Solve for x
    x = 87,445,265,248.91/389,539.89
  6. Step 6: Final answer
    x = 224,483.47

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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.