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Finding the Fourth Proportional to 457,140.25, 630,858.27 and 275,817.14

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Solution

The fourth proportional to 457,140.25, 630,858.27 and 275,817.14 is: 380,630.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,140.25 : 630,858.27 = 275,817.14 : x
  2. Step 2: Convert to fraction form
    457,140.25/630,858.27 = 275,817.14/x
  3. Step 3: Cross multiply
    457,140.25x = 630,858.27 × 275,817.14
  4. Step 4: Simplify right side
    457,140.25x = 174,001,525,353.89
  5. Step 5: Solve for x
    x = 174,001,525,353.89/457,140.25
  6. Step 6: Final answer
    x = 380,630.51

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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.