Home / 376,072.47-518,987.03-230,805.45

Finding the Fourth Proportional to 376,072.47, 518,987.03 and 230,805.45

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Solution

The fourth proportional to 376,072.47, 518,987.03 and 230,805.45 is: 318,515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,072.47 : 518,987.03 = 230,805.45 : x
  2. Step 2: Convert to fraction form
    376,072.47/518,987.03 = 230,805.45/x
  3. Step 3: Cross multiply
    376,072.47x = 518,987.03 × 230,805.45
  4. Step 4: Simplify right side
    376,072.47x = 119,785,033,849.29
  5. Step 5: Solve for x
    x = 119,785,033,849.29/376,072.47
  6. Step 6: Final answer
    x = 318,515.83

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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.