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Finding the Fourth Proportional to 305,999.76, 458,671.44 and 148,010.88

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Solution

The fourth proportional to 305,999.76, 458,671.44 and 148,010.88 is: 221,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,999.76 : 458,671.44 = 148,010.88 : x
  2. Step 2: Convert to fraction form
    305,999.76/458,671.44 = 148,010.88/x
  3. Step 3: Cross multiply
    305,999.76x = 458,671.44 × 148,010.88
  4. Step 4: Simplify right side
    305,999.76x = 67,888,363,465.27
  5. Step 5: Solve for x
    x = 67,888,363,465.27/305,999.76
  6. Step 6: Final answer
    x = 221,857.57

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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.