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Finding the Fourth Proportional to 373,474.62, 515,434.89 and 228,365.45

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Solution

The fourth proportional to 373,474.62, 515,434.89 and 228,365.45 is: 315,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,474.62 : 515,434.89 = 228,365.45 : x
  2. Step 2: Convert to fraction form
    373,474.62/515,434.89 = 228,365.45/x
  3. Step 3: Cross multiply
    373,474.62x = 515,434.89 × 228,365.45
  4. Step 4: Simplify right side
    373,474.62x = 117,707,518,023.38
  5. Step 5: Solve for x
    x = 117,707,518,023.38/373,474.62
  6. Step 6: Final answer
    x = 315,168.72

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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.