Home / 289,277.13-432,156.55-187,244.02

Finding the Fourth Proportional to 289,277.13, 432,156.55 and 187,244.02

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Solution

The fourth proportional to 289,277.13, 432,156.55 and 187,244.02 is: 279,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,277.13 : 432,156.55 = 187,244.02 : x
  2. Step 2: Convert to fraction form
    289,277.13/432,156.55 = 187,244.02/x
  3. Step 3: Cross multiply
    289,277.13x = 432,156.55 × 187,244.02
  4. Step 4: Simplify right side
    289,277.13x = 80,918,727,683.62
  5. Step 5: Solve for x
    x = 80,918,727,683.62/289,277.13
  6. Step 6: Final answer
    x = 279,727.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.