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Finding the Fourth Proportional to 421,587.92, 581,778.96 and 230,597.18

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Solution

The fourth proportional to 421,587.92, 581,778.96 and 230,597.18 is: 318,217.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,587.92 : 581,778.96 = 230,597.18 : x
  2. Step 2: Convert to fraction form
    421,587.92/581,778.96 = 230,597.18/x
  3. Step 3: Cross multiply
    421,587.92x = 581,778.96 × 230,597.18
  4. Step 4: Simplify right side
    421,587.92x = 134,156,587,559.33
  5. Step 5: Solve for x
    x = 134,156,587,559.33/421,587.92
  6. Step 6: Final answer
    x = 318,217.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.