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Finding the Fourth Proportional to 228,462.42, 315,278.10 and 127,860.42

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Solution

The fourth proportional to 228,462.42, 315,278.10 and 127,860.42 is: 176,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,462.42 : 315,278.10 = 127,860.42 : x
  2. Step 2: Convert to fraction form
    228,462.42/315,278.10 = 127,860.42/x
  3. Step 3: Cross multiply
    228,462.42x = 315,278.10 × 127,860.42
  4. Step 4: Simplify right side
    228,462.42x = 40,311,590,282.80
  5. Step 5: Solve for x
    x = 40,311,590,282.80/228,462.42
  6. Step 6: Final answer
    x = 176,447.36

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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.