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Finding the Fourth Proportional to 375,399.16, 518,050.64 and 203,317.12

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Solution

The fourth proportional to 375,399.16, 518,050.64 and 203,317.12 is: 280,577.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,399.16 : 518,050.64 = 203,317.12 : x
  2. Step 2: Convert to fraction form
    375,399.16/518,050.64 = 203,317.12/x
  3. Step 3: Cross multiply
    375,399.16x = 518,050.64 × 203,317.12
  4. Step 4: Simplify right side
    375,399.16x = 105,328,564,151.15
  5. Step 5: Solve for x
    x = 105,328,564,151.15/375,399.16
  6. Step 6: Final answer
    x = 280,577.52

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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.