Home / 289,298.74-434,017.40-120,725.29

Finding the Fourth Proportional to 289,298.74, 434,017.40 and 120,725.29

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Solution

The fourth proportional to 289,298.74, 434,017.40 and 120,725.29 is: 181,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,298.74 : 434,017.40 = 120,725.29 : x
  2. Step 2: Convert to fraction form
    289,298.74/434,017.40 = 120,725.29/x
  3. Step 3: Cross multiply
    289,298.74x = 434,017.40 × 120,725.29
  4. Step 4: Simplify right side
    289,298.74x = 52,396,875,876.42
  5. Step 5: Solve for x
    x = 52,396,875,876.42/289,298.74
  6. Step 6: Final answer
    x = 181,116.85

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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.