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Finding the Fourth Proportional to 216,278.66, 298,298.66 and 130,147.84

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Solution

The fourth proportional to 216,278.66, 298,298.66 and 130,147.84 is: 179,504.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,278.66 : 298,298.66 = 130,147.84 : x
  2. Step 2: Convert to fraction form
    216,278.66/298,298.66 = 130,147.84/x
  3. Step 3: Cross multiply
    216,278.66x = 298,298.66 × 130,147.84
  4. Step 4: Simplify right side
    216,278.66x = 38,822,926,273.89
  5. Step 5: Solve for x
    x = 38,822,926,273.89/216,278.66
  6. Step 6: Final answer
    x = 179,504.19

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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.