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Finding the Fourth Proportional to 486,671, 730,006.50 and 154,247

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Solution

The fourth proportional to 486,671, 730,006.50 and 154,247 is: 231,370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,671 : 730,006.50 = 154,247 : x
  2. Step 2: Convert to fraction form
    486,671/730,006.50 = 154,247/x
  3. Step 3: Cross multiply
    486,671x = 730,006.50 × 154,247
  4. Step 4: Simplify right side
    486,671x = 112,601,312,605.50
  5. Step 5: Solve for x
    x = 112,601,312,605.50/486,671
  6. Step 6: Final answer
    x = 231,370.50

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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.