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Finding the Fourth Proportional to 230,296.76, 345,445.14 and 89,956.97

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Solution

The fourth proportional to 230,296.76, 345,445.14 and 89,956.97 is: 134,935.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,296.76 : 345,445.14 = 89,956.97 : x
  2. Step 2: Convert to fraction form
    230,296.76/345,445.14 = 89,956.97/x
  3. Step 3: Cross multiply
    230,296.76x = 345,445.14 × 89,956.97
  4. Step 4: Simplify right side
    230,296.76x = 31,075,197,495.15
  5. Step 5: Solve for x
    x = 31,075,197,495.15/230,296.76
  6. Step 6: Final answer
    x = 134,935.45

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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.