Home / 287,056.96-396,154.16-159,735.32

Finding the Fourth Proportional to 287,056.96, 396,154.16 and 159,735.32

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Solution

The fourth proportional to 287,056.96, 396,154.16 and 159,735.32 is: 220,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,056.96 : 396,154.16 = 159,735.32 : x
  2. Step 2: Convert to fraction form
    287,056.96/396,154.16 = 159,735.32/x
  3. Step 3: Cross multiply
    287,056.96x = 396,154.16 × 159,735.32
  4. Step 4: Simplify right side
    287,056.96x = 63,279,811,516.93
  5. Step 5: Solve for x
    x = 63,279,811,516.93/287,056.96
  6. Step 6: Final answer
    x = 220,443.40

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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.