Home / 457,121.16-630,808.63-253,159.94

Finding the Fourth Proportional to 457,121.16, 630,808.63 and 253,159.94

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Solution

The fourth proportional to 457,121.16, 630,808.63 and 253,159.94 is: 349,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,121.16 : 630,808.63 = 253,159.94 : x
  2. Step 2: Convert to fraction form
    457,121.16/630,808.63 = 253,159.94/x
  3. Step 3: Cross multiply
    457,121.16x = 630,808.63 × 253,159.94
  4. Step 4: Simplify right side
    457,121.16x = 159,695,474,922.28
  5. Step 5: Solve for x
    x = 159,695,474,922.28/457,121.16
  6. Step 6: Final answer
    x = 349,350.43

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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.