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Finding the Fourth Proportional to 287,601.94, 396,907.95 and 158,540.23

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Solution

The fourth proportional to 287,601.94, 396,907.95 and 158,540.23 is: 218,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,601.94 : 396,907.95 = 158,540.23 : x
  2. Step 2: Convert to fraction form
    287,601.94/396,907.95 = 158,540.23/x
  3. Step 3: Cross multiply
    287,601.94x = 396,907.95 × 158,540.23
  4. Step 4: Simplify right side
    287,601.94x = 62,925,877,681.83
  5. Step 5: Solve for x
    x = 62,925,877,681.83/287,601.94
  6. Step 6: Final answer
    x = 218,795.04

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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.