Home / 457,021.82-630,680.10-266,031.11

Finding the Fourth Proportional to 457,021.82, 630,680.10 and 266,031.11

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Solution

The fourth proportional to 457,021.82, 630,680.10 and 266,031.11 is: 367,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,021.82 : 630,680.10 = 266,031.11 : x
  2. Step 2: Convert to fraction form
    457,021.82/630,680.10 = 266,031.11/x
  3. Step 3: Cross multiply
    457,021.82x = 630,680.10 × 266,031.11
  4. Step 4: Simplify right side
    457,021.82x = 167,780,527,057.91
  5. Step 5: Solve for x
    x = 167,780,527,057.91/457,021.82
  6. Step 6: Final answer
    x = 367,117.10

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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.