Home / 216,868.02-299,277.80-121,374.70

Finding the Fourth Proportional to 216,868.02, 299,277.80 and 121,374.70

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Solution

The fourth proportional to 216,868.02, 299,277.80 and 121,374.70 is: 167,497.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,868.02 : 299,277.80 = 121,374.70 : x
  2. Step 2: Convert to fraction form
    216,868.02/299,277.80 = 121,374.70/x
  3. Step 3: Cross multiply
    216,868.02x = 299,277.80 × 121,374.70
  4. Step 4: Simplify right side
    216,868.02x = 36,324,753,191.66
  5. Step 5: Solve for x
    x = 36,324,753,191.66/216,868.02
  6. Step 6: Final answer
    x = 167,497.05

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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.