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Finding the Fourth Proportional to 434,513.20, 651,769.80 and 185,162.80

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Solution

The fourth proportional to 434,513.20, 651,769.80 and 185,162.80 is: 277,744.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,513.20 : 651,769.80 = 185,162.80 : x
  2. Step 2: Convert to fraction form
    434,513.20/651,769.80 = 185,162.80/x
  3. Step 3: Cross multiply
    434,513.20x = 651,769.80 × 185,162.80
  4. Step 4: Simplify right side
    434,513.20x = 120,683,521,123.44
  5. Step 5: Solve for x
    x = 120,683,521,123.44/434,513.20
  6. Step 6: Final answer
    x = 277,744.20

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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.