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Finding the Fourth Proportional to 230,356.98, 345,392.91 and 89,950.50

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Solution

The fourth proportional to 230,356.98, 345,392.91 and 89,950.50 is: 134,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,356.98 : 345,392.91 = 89,950.50 : x
  2. Step 2: Convert to fraction form
    230,356.98/345,392.91 = 89,950.50/x
  3. Step 3: Cross multiply
    230,356.98x = 345,392.91 × 89,950.50
  4. Step 4: Simplify right side
    230,356.98x = 31,068,264,950.96
  5. Step 5: Solve for x
    x = 31,068,264,950.96/230,356.98
  6. Step 6: Final answer
    x = 134,870.08

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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.