Home / 425,837.89-638,731.63-159,576.13

Finding the Fourth Proportional to 425,837.89, 638,731.63 and 159,576.13

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Solution

The fourth proportional to 425,837.89, 638,731.63 and 159,576.13 is: 239,354.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,837.89 : 638,731.63 = 159,576.13 : x
  2. Step 2: Convert to fraction form
    425,837.89/638,731.63 = 159,576.13/x
  3. Step 3: Cross multiply
    425,837.89x = 638,731.63 × 159,576.13
  4. Step 4: Simplify right side
    425,837.89x = 101,926,321,623.99
  5. Step 5: Solve for x
    x = 101,926,321,623.99/425,837.89
  6. Step 6: Final answer
    x = 239,354.75

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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.