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Finding the Fourth Proportional to 330,455.58, 495,018.09 and 152,717.82

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Solution

The fourth proportional to 330,455.58, 495,018.09 and 152,717.82 is: 228,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,455.58 : 495,018.09 = 152,717.82 : x
  2. Step 2: Convert to fraction form
    330,455.58/495,018.09 = 152,717.82/x
  3. Step 3: Cross multiply
    330,455.58x = 495,018.09 × 152,717.82
  4. Step 4: Simplify right side
    330,455.58x = 75,598,083,565.36
  5. Step 5: Solve for x
    x = 75,598,083,565.36/330,455.58
  6. Step 6: Final answer
    x = 228,769.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.