Home / 374,278.29-561,639.78-137,787.05

Finding the Fourth Proportional to 374,278.29, 561,639.78 and 137,787.05

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Solution

The fourth proportional to 374,278.29, 561,639.78 and 137,787.05 is: 206,762.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,278.29 : 561,639.78 = 137,787.05 : x
  2. Step 2: Convert to fraction form
    374,278.29/561,639.78 = 137,787.05/x
  3. Step 3: Cross multiply
    374,278.29x = 561,639.78 × 137,787.05
  4. Step 4: Simplify right side
    374,278.29x = 77,386,685,640.65
  5. Step 5: Solve for x
    x = 77,386,685,640.65/374,278.29
  6. Step 6: Final answer
    x = 206,762.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.