Home / 287,436.19-396,662.31-156,613.23

Finding the Fourth Proportional to 287,436.19, 396,662.31 and 156,613.23

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Solution

The fourth proportional to 287,436.19, 396,662.31 and 156,613.23 is: 216,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,436.19 : 396,662.31 = 156,613.23 : x
  2. Step 2: Convert to fraction form
    287,436.19/396,662.31 = 156,613.23/x
  3. Step 3: Cross multiply
    287,436.19x = 396,662.31 × 156,613.23
  4. Step 4: Simplify right side
    287,436.19x = 62,122,565,588.36
  5. Step 5: Solve for x
    x = 62,122,565,588.36/287,436.19
  6. Step 6: Final answer
    x = 216,126.46

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1.5x scale

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.