Home / 421,630.20-581,844.96-230,641.29

Finding the Fourth Proportional to 421,630.20, 581,844.96 and 230,641.29

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Solution

The fourth proportional to 421,630.20, 581,844.96 and 230,641.29 is: 318,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,630.20 : 581,844.96 = 230,641.29 : x
  2. Step 2: Convert to fraction form
    421,630.20/581,844.96 = 230,641.29/x
  3. Step 3: Cross multiply
    421,630.20x = 581,844.96 × 230,641.29
  4. Step 4: Simplify right side
    421,630.20x = 134,197,472,154.40
  5. Step 5: Solve for x
    x = 134,197,472,154.40/421,630.20
  6. Step 6: Final answer
    x = 318,282.40

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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.