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Finding the Fourth Proportional to 409,565.64, 565,203.36 and 228,289.24

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Solution

The fourth proportional to 409,565.64, 565,203.36 and 228,289.24 is: 315,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,565.64 : 565,203.36 = 228,289.24 : x
  2. Step 2: Convert to fraction form
    409,565.64/565,203.36 = 228,289.24/x
  3. Step 3: Cross multiply
    409,565.64x = 565,203.36 × 228,289.24
  4. Step 4: Simplify right side
    409,565.64x = 129,029,845,499.85
  5. Step 5: Solve for x
    x = 129,029,845,499.85/409,565.64
  6. Step 6: Final answer
    x = 315,040.70

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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.