Home / 375,400.16-518,052.02-203,318.12

Finding the Fourth Proportional to 375,400.16, 518,052.02 and 203,318.12

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Solution

The fourth proportional to 375,400.16, 518,052.02 and 203,318.12 is: 280,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,400.16 : 518,052.02 = 203,318.12 : x
  2. Step 2: Convert to fraction form
    375,400.16/518,052.02 = 203,318.12/x
  3. Step 3: Cross multiply
    375,400.16x = 518,052.02 × 203,318.12
  4. Step 4: Simplify right side
    375,400.16x = 105,329,362,768.60
  5. Step 5: Solve for x
    x = 105,329,362,768.60/375,400.16
  6. Step 6: Final answer
    x = 280,578.90

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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.