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Finding the Fourth Proportional to 273,398.95, 377,281.74 and 149,215.17

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Solution

The fourth proportional to 273,398.95, 377,281.74 and 149,215.17 is: 205,912.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,398.95 : 377,281.74 = 149,215.17 : x
  2. Step 2: Convert to fraction form
    273,398.95/377,281.74 = 149,215.17/x
  3. Step 3: Cross multiply
    273,398.95x = 377,281.74 × 149,215.17
  4. Step 4: Simplify right side
    273,398.95x = 56,296,157,984.81
  5. Step 5: Solve for x
    x = 56,296,157,984.81/273,398.95
  6. Step 6: Final answer
    x = 205,912.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.