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Finding the Fourth Proportional to 457,090.98, 630,862.47 and 266,217.72

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Solution

The fourth proportional to 457,090.98, 630,862.47 and 266,217.72 is: 367,425.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,090.98 : 630,862.47 = 266,217.72 : x
  2. Step 2: Convert to fraction form
    457,090.98/630,862.47 = 266,217.72/x
  3. Step 3: Cross multiply
    457,090.98x = 630,862.47 × 266,217.72
  4. Step 4: Simplify right side
    457,090.98x = 167,946,768,396.97
  5. Step 5: Solve for x
    x = 167,946,768,396.97/457,090.98
  6. Step 6: Final answer
    x = 367,425.25

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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.