Home / 421,141.20-581,173.56-230,154.59

Finding the Fourth Proportional to 421,141.20, 581,173.56 and 230,154.59

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Solution

The fourth proportional to 421,141.20, 581,173.56 and 230,154.59 is: 317,612.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,141.20 : 581,173.56 = 230,154.59 : x
  2. Step 2: Convert to fraction form
    421,141.20/581,173.56 = 230,154.59/x
  3. Step 3: Cross multiply
    421,141.20x = 581,173.56 × 230,154.59
  4. Step 4: Simplify right side
    421,141.20x = 133,759,761,694.17
  5. Step 5: Solve for x
    x = 133,759,761,694.17/421,141.20
  6. Step 6: Final answer
    x = 317,612.62

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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.