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Finding the Fourth Proportional to 305,598.93, 458,492.25 and 145,878.66

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Solution

The fourth proportional to 305,598.93, 458,492.25 and 145,878.66 is: 218,862.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,598.93 : 458,492.25 = 145,878.66 : x
  2. Step 2: Convert to fraction form
    305,598.93/458,492.25 = 145,878.66/x
  3. Step 3: Cross multiply
    305,598.93x = 458,492.25 × 145,878.66
  4. Step 4: Simplify right side
    305,598.93x = 66,884,235,050.39
  5. Step 5: Solve for x
    x = 66,884,235,050.39/305,598.93
  6. Step 6: Final answer
    x = 218,862.79

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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.