Home / 285,625.30-428,437.95-167,430.10

Finding the Fourth Proportional to 285,625.30, 428,437.95 and 167,430.10

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Solution

The fourth proportional to 285,625.30, 428,437.95 and 167,430.10 is: 251,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,625.30 : 428,437.95 = 167,430.10 : x
  2. Step 2: Convert to fraction form
    285,625.30/428,437.95 = 167,430.10/x
  3. Step 3: Cross multiply
    285,625.30x = 428,437.95 × 167,430.10
  4. Step 4: Simplify right side
    285,625.30x = 71,733,408,812.30
  5. Step 5: Solve for x
    x = 71,733,408,812.30/285,625.30
  6. Step 6: Final answer
    x = 251,145.15

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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.