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Finding the Fourth Proportional to 216,275.81, 298,469.15 and 124,394.95

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Solution

The fourth proportional to 216,275.81, 298,469.15 and 124,394.95 is: 171,669.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,275.81 : 298,469.15 = 124,394.95 : x
  2. Step 2: Convert to fraction form
    216,275.81/298,469.15 = 124,394.95/x
  3. Step 3: Cross multiply
    216,275.81x = 298,469.15 × 124,394.95
  4. Step 4: Simplify right side
    216,275.81x = 37,128,053,653.94
  5. Step 5: Solve for x
    x = 37,128,053,653.94/216,275.81
  6. Step 6: Final answer
    x = 171,669.93

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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.