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Finding the Fourth Proportional to 305,774.92, 458,316.33 and 155,698.20

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Solution

The fourth proportional to 305,774.92, 458,316.33 and 155,698.20 is: 233,371.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,774.92 : 458,316.33 = 155,698.20 : x
  2. Step 2: Convert to fraction form
    305,774.92/458,316.33 = 155,698.20/x
  3. Step 3: Cross multiply
    305,774.92x = 458,316.33 × 155,698.20
  4. Step 4: Simplify right side
    305,774.92x = 71,359,027,611.61
  5. Step 5: Solve for x
    x = 71,359,027,611.61/305,774.92
  6. Step 6: Final answer
    x = 233,371.09

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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.