Home / 287,677.32-396,999.90-160,339.23

Finding the Fourth Proportional to 287,677.32, 396,999.90 and 160,339.23

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Solution

The fourth proportional to 287,677.32, 396,999.90 and 160,339.23 is: 221,271.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,677.32 : 396,999.90 = 160,339.23 : x
  2. Step 2: Convert to fraction form
    287,677.32/396,999.90 = 160,339.23/x
  3. Step 3: Cross multiply
    287,677.32x = 396,999.90 × 160,339.23
  4. Step 4: Simplify right side
    287,677.32x = 63,654,658,276.08
  5. Step 5: Solve for x
    x = 63,654,658,276.08/287,677.32
  6. Step 6: Final answer
    x = 221,271.03

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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.