Home / 389,545.89-584,394.57-149,642.25

Finding the Fourth Proportional to 389,545.89, 584,394.57 and 149,642.25

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Solution

The fourth proportional to 389,545.89, 584,394.57 and 149,642.25 is: 224,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,545.89 : 584,394.57 = 149,642.25 : x
  2. Step 2: Convert to fraction form
    389,545.89/584,394.57 = 149,642.25/x
  3. Step 3: Cross multiply
    389,545.89x = 584,394.57 × 149,642.25
  4. Step 4: Simplify right side
    389,545.89x = 87,450,118,342.58
  5. Step 5: Solve for x
    x = 87,450,118,342.58/389,545.89
  6. Step 6: Final answer
    x = 224,492.47

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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.