Home / 389,680.10-584,196.15-165,212.90

Finding the Fourth Proportional to 389,680.10, 584,196.15 and 165,212.90

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Solution

The fourth proportional to 389,680.10, 584,196.15 and 165,212.90 is: 247,681.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,680.10 : 584,196.15 = 165,212.90 : x
  2. Step 2: Convert to fraction form
    389,680.10/584,196.15 = 165,212.90/x
  3. Step 3: Cross multiply
    389,680.10x = 584,196.15 × 165,212.90
  4. Step 4: Simplify right side
    389,680.10x = 96,516,740,110.34
  5. Step 5: Solve for x
    x = 96,516,740,110.34/389,680.10
  6. Step 6: Final answer
    x = 247,681.98

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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.