Home / 425,829.18-638,743.86-173,247.12

Finding the Fourth Proportional to 425,829.18, 638,743.86 and 173,247.12

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Solution

The fourth proportional to 425,829.18, 638,743.86 and 173,247.12 is: 259,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,829.18 : 638,743.86 = 173,247.12 : x
  2. Step 2: Convert to fraction form
    425,829.18/638,743.86 = 173,247.12/x
  3. Step 3: Cross multiply
    425,829.18x = 638,743.86 × 173,247.12
  4. Step 4: Simplify right side
    425,829.18x = 110,660,534,162.68
  5. Step 5: Solve for x
    x = 110,660,534,162.68/425,829.18
  6. Step 6: Final answer
    x = 259,870.72

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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.