Home / 423,819.23-635,333.56-143,140.19

Finding the Fourth Proportional to 423,819.23, 635,333.56 and 143,140.19

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Solution

The fourth proportional to 423,819.23, 635,333.56 and 143,140.19 is: 214,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,819.23 : 635,333.56 = 143,140.19 : x
  2. Step 2: Convert to fraction form
    423,819.23/635,333.56 = 143,140.19/x
  3. Step 3: Cross multiply
    423,819.23x = 635,333.56 × 143,140.19
  4. Step 4: Simplify right side
    423,819.23x = 90,941,762,957.26
  5. Step 5: Solve for x
    x = 90,941,762,957.26/423,819.23
  6. Step 6: Final answer
    x = 214,576.78

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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.