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Finding the Fourth Proportional to 300,725.65, 415,001.72 and 162,904.90

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Solution

The fourth proportional to 300,725.65, 415,001.72 and 162,904.90 is: 224,808.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,725.65 : 415,001.72 = 162,904.90 : x
  2. Step 2: Convert to fraction form
    300,725.65/415,001.72 = 162,904.90/x
  3. Step 3: Cross multiply
    300,725.65x = 415,001.72 × 162,904.90
  4. Step 4: Simplify right side
    300,725.65x = 67,605,810,806.89
  5. Step 5: Solve for x
    x = 67,605,810,806.89/300,725.65
  6. Step 6: Final answer
    x = 224,808.93

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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.