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Finding the Fourth Proportional to 287,323.69, 396,506.69 and 166,535.04

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Solution

The fourth proportional to 287,323.69, 396,506.69 and 166,535.04 is: 229,818.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,323.69 : 396,506.69 = 166,535.04 : x
  2. Step 2: Convert to fraction form
    287,323.69/396,506.69 = 166,535.04/x
  3. Step 3: Cross multiply
    287,323.69x = 396,506.69 × 166,535.04
  4. Step 4: Simplify right side
    287,323.69x = 66,032,256,071.81
  5. Step 5: Solve for x
    x = 66,032,256,071.81/287,323.69
  6. Step 6: Final answer
    x = 229,818.35

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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.