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Finding the Fourth Proportional to 251,710.40, 377,624.08 and 83,220.56

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Solution

The fourth proportional to 251,710.40, 377,624.08 and 83,220.56 is: 124,850.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,710.40 : 377,624.08 = 83,220.56 : x
  2. Step 2: Convert to fraction form
    251,710.40/377,624.08 = 83,220.56/x
  3. Step 3: Cross multiply
    251,710.40x = 377,624.08 × 83,220.56
  4. Step 4: Simplify right side
    251,710.40x = 31,426,087,407.08
  5. Step 5: Solve for x
    x = 31,426,087,407.08/251,710.40
  6. Step 6: Final answer
    x = 124,850.17

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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.