Home / 421,142.75-581,179.33-237,384.18

Finding the Fourth Proportional to 421,142.75, 581,179.33 and 237,384.18

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Solution

The fourth proportional to 421,142.75, 581,179.33 and 237,384.18 is: 327,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,142.75 : 581,179.33 = 237,384.18 : x
  2. Step 2: Convert to fraction form
    421,142.75/581,179.33 = 237,384.18/x
  3. Step 3: Cross multiply
    421,142.75x = 581,179.33 × 237,384.18
  4. Step 4: Simplify right side
    421,142.75x = 137,962,774,592.18
  5. Step 5: Solve for x
    x = 137,962,774,592.18/421,142.75
  6. Step 6: Final answer
    x = 327,591.47

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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.