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Finding the Fourth Proportional to 305,943.40, 458,466.90 and 274,353.40

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Solution

The fourth proportional to 305,943.40, 458,466.90 and 274,353.40 is: 411,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,943.40 : 458,466.90 = 274,353.40 : x
  2. Step 2: Convert to fraction form
    305,943.40/458,466.90 = 274,353.40/x
  3. Step 3: Cross multiply
    305,943.40x = 458,466.90 × 274,353.40
  4. Step 4: Simplify right side
    305,943.40x = 125,781,952,802.46
  5. Step 5: Solve for x
    x = 125,781,952,802.46/305,943.40
  6. Step 6: Final answer
    x = 411,128.18

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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.