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Finding the Fourth Proportional to 375,525.31, 518,245.68 and 214,432.11

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Solution

The fourth proportional to 375,525.31, 518,245.68 and 214,432.11 is: 295,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,525.31 : 518,245.68 = 214,432.11 : x
  2. Step 2: Convert to fraction form
    375,525.31/518,245.68 = 214,432.11/x
  3. Step 3: Cross multiply
    375,525.31x = 518,245.68 × 214,432.11
  4. Step 4: Simplify right side
    375,525.31x = 111,128,514,660.79
  5. Step 5: Solve for x
    x = 111,128,514,660.79/375,525.31
  6. Step 6: Final answer
    x = 295,928.16

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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.