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Finding the Fourth Proportional to 305,886.75, 458,358.55 and 163,750.89

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Solution

The fourth proportional to 305,886.75, 458,358.55 and 163,750.89 is: 245,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,886.75 : 458,358.55 = 163,750.89 : x
  2. Step 2: Convert to fraction form
    305,886.75/458,358.55 = 163,750.89/x
  3. Step 3: Cross multiply
    305,886.75x = 458,358.55 × 163,750.89
  4. Step 4: Simplify right side
    305,886.75x = 75,056,618,209.82
  5. Step 5: Solve for x
    x = 75,056,618,209.82/305,886.75
  6. Step 6: Final answer
    x = 245,373.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.