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Finding the Fourth Proportional to 189,042.50, 260,884.57 and 108,484.76

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Solution

The fourth proportional to 189,042.50, 260,884.57 and 108,484.76 is: 149,712.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,042.50 : 260,884.57 = 108,484.76 : x
  2. Step 2: Convert to fraction form
    189,042.50/260,884.57 = 108,484.76/x
  3. Step 3: Cross multiply
    189,042.50x = 260,884.57 × 108,484.76
  4. Step 4: Simplify right side
    189,042.50x = 28,302,000,834.31
  5. Step 5: Solve for x
    x = 28,302,000,834.31/189,042.50
  6. Step 6: Final answer
    x = 149,712.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.