Home / 289,516.28-434,276.87-112,043.66

Finding the Fourth Proportional to 289,516.28, 434,276.87 and 112,043.66

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Solution

The fourth proportional to 289,516.28, 434,276.87 and 112,043.66 is: 168,066.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,516.28 : 434,276.87 = 112,043.66 : x
  2. Step 2: Convert to fraction form
    289,516.28/434,276.87 = 112,043.66/x
  3. Step 3: Cross multiply
    289,516.28x = 434,276.87 × 112,043.66
  4. Step 4: Simplify right side
    289,516.28x = 48,657,969,407.93
  5. Step 5: Solve for x
    x = 48,657,969,407.93/289,516.28
  6. Step 6: Final answer
    x = 168,066.44

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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.