Home / 376,127.62-518,919.90-247,135.57

Finding the Fourth Proportional to 376,127.62, 518,919.90 and 247,135.57

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Solution

The fourth proportional to 376,127.62, 518,919.90 and 247,135.57 is: 340,957.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,127.62 : 518,919.90 = 247,135.57 : x
  2. Step 2: Convert to fraction form
    376,127.62/518,919.90 = 247,135.57/x
  3. Step 3: Cross multiply
    376,127.62x = 518,919.90 × 247,135.57
  4. Step 4: Simplify right side
    376,127.62x = 128,243,565,270.84
  5. Step 5: Solve for x
    x = 128,243,565,270.84/376,127.62
  6. Step 6: Final answer
    x = 340,957.59

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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.