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Finding the Fourth Proportional to 287,373.93, 396,698.11 and 204,641.54

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Solution

The fourth proportional to 287,373.93, 396,698.11 and 204,641.54 is: 282,492.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,373.93 : 396,698.11 = 204,641.54 : x
  2. Step 2: Convert to fraction form
    287,373.93/396,698.11 = 204,641.54/x
  3. Step 3: Cross multiply
    287,373.93x = 396,698.11 × 204,641.54
  4. Step 4: Simplify right side
    287,373.93x = 81,180,911,138.01
  5. Step 5: Solve for x
    x = 81,180,911,138.01/287,373.93
  6. Step 6: Final answer
    x = 282,492.26

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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.