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Finding the Fourth Proportional to 216,886.68, 299,305.13 and 126,295.47

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Solution

The fourth proportional to 216,886.68, 299,305.13 and 126,295.47 is: 174,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,886.68 : 299,305.13 = 126,295.47 : x
  2. Step 2: Convert to fraction form
    216,886.68/299,305.13 = 126,295.47/x
  3. Step 3: Cross multiply
    216,886.68x = 299,305.13 × 126,295.47
  4. Step 4: Simplify right side
    216,886.68x = 37,800,881,435.28
  5. Step 5: Solve for x
    x = 37,800,881,435.28/216,886.68
  6. Step 6: Final answer
    x = 174,288.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.