Home / 216,264.51-298,432.65-129,147.93

Finding the Fourth Proportional to 216,264.51, 298,432.65 and 129,147.93

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Solution

The fourth proportional to 216,264.51, 298,432.65 and 129,147.93 is: 178,216.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,264.51 : 298,432.65 = 129,147.93 : x
  2. Step 2: Convert to fraction form
    216,264.51/298,432.65 = 129,147.93/x
  3. Step 3: Cross multiply
    216,264.51x = 298,432.65 × 129,147.93
  4. Step 4: Simplify right side
    216,264.51x = 38,541,958,991.91
  5. Step 5: Solve for x
    x = 38,541,958,991.91/216,264.51
  6. Step 6: Final answer
    x = 178,216.75

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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.