Home / 289,895.64-434,836.33-112,402.70

Finding the Fourth Proportional to 289,895.64, 434,836.33 and 112,402.70

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Solution

The fourth proportional to 289,895.64, 434,836.33 and 112,402.70 is: 168,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,895.64 : 434,836.33 = 112,402.70 : x
  2. Step 2: Convert to fraction form
    289,895.64/434,836.33 = 112,402.70/x
  3. Step 3: Cross multiply
    289,895.64x = 434,836.33 × 112,402.70
  4. Step 4: Simplify right side
    289,895.64x = 48,876,779,803.76
  5. Step 5: Solve for x
    x = 48,876,779,803.76/289,895.64
  6. Step 6: Final answer
    x = 168,601.29

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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.