Home / 345,950.21-518,988.06-156,499.85

Finding the Fourth Proportional to 345,950.21, 518,988.06 and 156,499.85

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Solution

The fourth proportional to 345,950.21, 518,988.06 and 156,499.85 is: 234,778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,950.21 : 518,988.06 = 156,499.85 : x
  2. Step 2: Convert to fraction form
    345,950.21/518,988.06 = 156,499.85/x
  3. Step 3: Cross multiply
    345,950.21x = 518,988.06 × 156,499.85
  4. Step 4: Simplify right side
    345,950.21x = 81,221,550,946.85
  5. Step 5: Solve for x
    x = 81,221,550,946.85/345,950.21
  6. Step 6: Final answer
    x = 234,778.16

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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.