Home / 216,521.15-298,787.07-119,719.40

Finding the Fourth Proportional to 216,521.15, 298,787.07 and 119,719.40

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Solution

The fourth proportional to 216,521.15, 298,787.07 and 119,719.40 is: 165,206.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,521.15 : 298,787.07 = 119,719.40 : x
  2. Step 2: Convert to fraction form
    216,521.15/298,787.07 = 119,719.40/x
  3. Step 3: Cross multiply
    216,521.15x = 298,787.07 × 119,719.40
  4. Step 4: Simplify right side
    216,521.15x = 35,770,607,703.17
  5. Step 5: Solve for x
    x = 35,770,607,703.17/216,521.15
  6. Step 6: Final answer
    x = 165,206.07

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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.