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Finding the Fourth Proportional to 189,298.80, 284,088.96 and 89,489.58

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Solution

The fourth proportional to 189,298.80, 284,088.96 and 89,489.58 is: 134,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,298.80 : 284,088.96 = 89,489.58 : x
  2. Step 2: Convert to fraction form
    189,298.80/284,088.96 = 89,489.58/x
  3. Step 3: Cross multiply
    189,298.80x = 284,088.96 × 89,489.58
  4. Step 4: Simplify right side
    189,298.80x = 25,423,001,713.04
  5. Step 5: Solve for x
    x = 25,423,001,713.04/189,298.80
  6. Step 6: Final answer
    x = 134,300.91

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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.