Home / 389,640.20-584,518.70-165,000.20

Finding the Fourth Proportional to 389,640.20, 584,518.70 and 165,000.20

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Solution

The fourth proportional to 389,640.20, 584,518.70 and 165,000.20 is: 247,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,640.20 : 584,518.70 = 165,000.20 : x
  2. Step 2: Convert to fraction form
    389,640.20/584,518.70 = 165,000.20/x
  3. Step 3: Cross multiply
    389,640.20x = 584,518.70 × 165,000.20
  4. Step 4: Simplify right side
    389,640.20x = 96,445,702,403.74
  5. Step 5: Solve for x
    x = 96,445,702,403.74/389,640.20
  6. Step 6: Final answer
    x = 247,525.03

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1.5x scale

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.