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Finding the Fourth Proportional to 375,624.23, 518,304.08 and 212,221.10

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Solution

The fourth proportional to 375,624.23, 518,304.08 and 212,221.10 is: 292,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,624.23 : 518,304.08 = 212,221.10 : x
  2. Step 2: Convert to fraction form
    375,624.23/518,304.08 = 212,221.10/x
  3. Step 3: Cross multiply
    375,624.23x = 518,304.08 × 212,221.10
  4. Step 4: Simplify right side
    375,624.23x = 109,995,063,818.40
  5. Step 5: Solve for x
    x = 109,995,063,818.40/375,624.23
  6. Step 6: Final answer
    x = 292,832.72

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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.