Home / 287,435.60-396,673.38-160,111.25

Finding the Fourth Proportional to 287,435.60, 396,673.38 and 160,111.25

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Solution

The fourth proportional to 287,435.60, 396,673.38 and 160,111.25 is: 220,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,435.60 : 396,673.38 = 160,111.25 : x
  2. Step 2: Convert to fraction form
    287,435.60/396,673.38 = 160,111.25/x
  3. Step 3: Cross multiply
    287,435.60x = 396,673.38 × 160,111.25
  4. Step 4: Simplify right side
    287,435.60x = 63,511,868,730.16
  5. Step 5: Solve for x
    x = 63,511,868,730.16/287,435.60
  6. Step 6: Final answer
    x = 220,960.35

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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.