Home / 289,367.11-434,175.14-156,220.93

Finding the Fourth Proportional to 289,367.11, 434,175.14 and 156,220.93

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Solution

The fourth proportional to 289,367.11, 434,175.14 and 156,220.93 is: 234,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,367.11 : 434,175.14 = 156,220.93 : x
  2. Step 2: Convert to fraction form
    289,367.11/434,175.14 = 156,220.93/x
  3. Step 3: Cross multiply
    289,367.11x = 434,175.14 × 156,220.93
  4. Step 4: Simplify right side
    289,367.11x = 67,827,244,153.68
  5. Step 5: Solve for x
    x = 67,827,244,153.68/289,367.11
  6. Step 6: Final answer
    x = 234,398.60

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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.