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Finding the Fourth Proportional to 371,866, 514,526.16 and 324,218.56

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Solution

The fourth proportional to 371,866, 514,526.16 and 324,218.56 is: 448,599.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,866 : 514,526.16 = 324,218.56 : x
  2. Step 2: Convert to fraction form
    371,866/514,526.16 = 324,218.56/x
  3. Step 3: Cross multiply
    371,866x = 514,526.16 × 324,218.56
  4. Step 4: Simplify right side
    371,866x = 166,818,930,677.53
  5. Step 5: Solve for x
    x = 166,818,930,677.53/371,866
  6. Step 6: Final answer
    x = 448,599.58

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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.