Home / 287,346.11-396,509.24-160,033.55

Finding the Fourth Proportional to 287,346.11, 396,509.24 and 160,033.55

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Solution

The fourth proportional to 287,346.11, 396,509.24 and 160,033.55 is: 220,830.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,346.11 : 396,509.24 = 160,033.55 : x
  2. Step 2: Convert to fraction form
    287,346.11/396,509.24 = 160,033.55/x
  3. Step 3: Cross multiply
    287,346.11x = 396,509.24 × 160,033.55
  4. Step 4: Simplify right side
    287,346.11x = 63,454,779,702.54
  5. Step 5: Solve for x
    x = 63,454,779,702.54/287,346.11
  6. Step 6: Final answer
    x = 220,830.48

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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.