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Finding the Fourth Proportional to 199,407.60, 299,330.10 and 124,612.20

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Solution

The fourth proportional to 199,407.60, 299,330.10 and 124,612.20 is: 187,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,407.60 : 299,330.10 = 124,612.20 : x
  2. Step 2: Convert to fraction form
    199,407.60/299,330.10 = 124,612.20/x
  3. Step 3: Cross multiply
    199,407.60x = 299,330.10 × 124,612.20
  4. Step 4: Simplify right side
    199,407.60x = 37,300,182,287.22
  5. Step 5: Solve for x
    x = 37,300,182,287.22/199,407.60
  6. Step 6: Final answer
    x = 187,054.97

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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.