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Finding the Fourth Proportional to 375,815.16, 518,648.94 and 248,267.16

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Solution

The fourth proportional to 375,815.16, 518,648.94 and 248,267.16 is: 342,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,815.16 : 518,648.94 = 248,267.16 : x
  2. Step 2: Convert to fraction form
    375,815.16/518,648.94 = 248,267.16/x
  3. Step 3: Cross multiply
    375,815.16x = 518,648.94 × 248,267.16
  4. Step 4: Simplify right side
    375,815.16x = 128,763,499,370.81
  5. Step 5: Solve for x
    x = 128,763,499,370.81/375,815.16
  6. Step 6: Final answer
    x = 342,624.55

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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.