Home / 287,438.22-396,677.01-160,113.90

Finding the Fourth Proportional to 287,438.22, 396,677.01 and 160,113.90

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Solution

The fourth proportional to 287,438.22, 396,677.01 and 160,113.90 is: 220,964.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,438.22 : 396,677.01 = 160,113.90 : x
  2. Step 2: Convert to fraction form
    287,438.22/396,677.01 = 160,113.90/x
  3. Step 3: Cross multiply
    287,438.22x = 396,677.01 × 160,113.90
  4. Step 4: Simplify right side
    287,438.22x = 63,513,503,111.44
  5. Step 5: Solve for x
    x = 63,513,503,111.44/287,438.22
  6. Step 6: Final answer
    x = 220,964.01

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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.