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Finding the Fourth Proportional to 216,751.52, 299,117.20 and 121,258.24

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Solution

The fourth proportional to 216,751.52, 299,117.20 and 121,258.24 is: 167,336.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,751.52 : 299,117.20 = 121,258.24 : x
  2. Step 2: Convert to fraction form
    216,751.52/299,117.20 = 121,258.24/x
  3. Step 3: Cross multiply
    216,751.52x = 299,117.20 × 121,258.24
  4. Step 4: Simplify right side
    216,751.52x = 36,270,425,225.73
  5. Step 5: Solve for x
    x = 36,270,425,225.73/216,751.52
  6. Step 6: Final answer
    x = 167,336.43

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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.