Home / 374,278.10-561,639.50-137,786.86

Finding the Fourth Proportional to 374,278.10, 561,639.50 and 137,786.86

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Solution

The fourth proportional to 374,278.10, 561,639.50 and 137,786.86 is: 206,762.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,278.10 : 561,639.50 = 137,786.86 : x
  2. Step 2: Convert to fraction form
    374,278.10/561,639.50 = 137,786.86/x
  3. Step 3: Cross multiply
    374,278.10x = 561,639.50 × 137,786.86
  4. Step 4: Simplify right side
    374,278.10x = 77,386,541,580.64
  5. Step 5: Solve for x
    x = 77,386,541,580.64/374,278.10
  6. Step 6: Final answer
    x = 206,762.14

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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.