Home / 217,335.71-299,931.05-126,677.07

Finding the Fourth Proportional to 217,335.71, 299,931.05 and 126,677.07

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Solution

The fourth proportional to 217,335.71, 299,931.05 and 126,677.07 is: 174,818.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,335.71 : 299,931.05 = 126,677.07 : x
  2. Step 2: Convert to fraction form
    217,335.71/299,931.05 = 126,677.07/x
  3. Step 3: Cross multiply
    217,335.71x = 299,931.05 × 126,677.07
  4. Step 4: Simplify right side
    217,335.71x = 37,994,386,932.72
  5. Step 5: Solve for x
    x = 37,994,386,932.72/217,335.71
  6. Step 6: Final answer
    x = 174,818.89

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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.