Home / 217,339.86-299,943.39-121,852.74

Finding the Fourth Proportional to 217,339.86, 299,943.39 and 121,852.74

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Solution

The fourth proportional to 217,339.86, 299,943.39 and 121,852.74 is: 168,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,339.86 : 299,943.39 = 121,852.74 : x
  2. Step 2: Convert to fraction form
    217,339.86/299,943.39 = 121,852.74/x
  3. Step 3: Cross multiply
    217,339.86x = 299,943.39 × 121,852.74
  4. Step 4: Simplify right side
    217,339.86x = 36,548,923,916.39
  5. Step 5: Solve for x
    x = 36,548,923,916.39/217,339.86
  6. Step 6: Final answer
    x = 168,164.85

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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.