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Finding the Fourth Proportional to 375,900.54, 518,240.88 and 298,632.54

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Solution

The fourth proportional to 375,900.54, 518,240.88 and 298,632.54 is: 411,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,900.54 : 518,240.88 = 298,632.54 : x
  2. Step 2: Convert to fraction form
    375,900.54/518,240.88 = 298,632.54/x
  3. Step 3: Cross multiply
    375,900.54x = 518,240.88 × 298,632.54
  4. Step 4: Simplify right side
    375,900.54x = 154,763,590,326.24
  5. Step 5: Solve for x
    x = 154,763,590,326.24/375,900.54
  6. Step 6: Final answer
    x = 411,714.20

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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.