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Finding the Fourth Proportional to 229,143.59, 343,633.36 and 79,343.65

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Solution

The fourth proportional to 229,143.59, 343,633.36 and 79,343.65 is: 118,987.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,143.59 : 343,633.36 = 79,343.65 : x
  2. Step 2: Convert to fraction form
    229,143.59/343,633.36 = 79,343.65/x
  3. Step 3: Cross multiply
    229,143.59x = 343,633.36 × 79,343.65
  4. Step 4: Simplify right side
    229,143.59x = 27,265,125,044.16
  5. Step 5: Solve for x
    x = 27,265,125,044.16/229,143.59
  6. Step 6: Final answer
    x = 118,987.07

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1.5x scale

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.