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Finding the Fourth Proportional to 239,636.88, 359,192.88 and 121,145.22

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Solution

The fourth proportional to 239,636.88, 359,192.88 and 121,145.22 is: 181,585.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,636.88 : 359,192.88 = 121,145.22 : x
  2. Step 2: Convert to fraction form
    239,636.88/359,192.88 = 121,145.22/x
  3. Step 3: Cross multiply
    239,636.88x = 359,192.88 × 121,145.22
  4. Step 4: Simplify right side
    239,636.88x = 43,514,500,470.03
  5. Step 5: Solve for x
    x = 43,514,500,470.03/239,636.88
  6. Step 6: Final answer
    x = 181,585.16

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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.