Home / 320,347.50-480,548.92-83,690.18

Finding the Fourth Proportional to 320,347.50, 480,548.92 and 83,690.18

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Solution

The fourth proportional to 320,347.50, 480,548.92 and 83,690.18 is: 125,542.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,347.50 : 480,548.92 = 83,690.18 : x
  2. Step 2: Convert to fraction form
    320,347.50/480,548.92 = 83,690.18/x
  3. Step 3: Cross multiply
    320,347.50x = 480,548.92 × 83,690.18
  4. Step 4: Simplify right side
    320,347.50x = 40,217,225,613.61
  5. Step 5: Solve for x
    x = 40,217,225,613.61/320,347.50
  6. Step 6: Final answer
    x = 125,542.50

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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.