Home / 287,437.72-396,676.32-160,113.40

Finding the Fourth Proportional to 287,437.72, 396,676.32 and 160,113.40

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Solution

The fourth proportional to 287,437.72, 396,676.32 and 160,113.40 is: 220,963.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,437.72 : 396,676.32 = 160,113.40 : x
  2. Step 2: Convert to fraction form
    287,437.72/396,676.32 = 160,113.40/x
  3. Step 3: Cross multiply
    287,437.72x = 396,676.32 × 160,113.40
  4. Step 4: Simplify right side
    287,437.72x = 63,513,194,294.69
  5. Step 5: Solve for x
    x = 63,513,194,294.69/287,437.72
  6. Step 6: Final answer
    x = 220,963.32

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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.