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Finding the Fourth Proportional to 219,718.95, 303,220.31 and 124,219.95

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Solution

The fourth proportional to 219,718.95, 303,220.31 and 124,219.95 is: 171,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,718.95 : 303,220.31 = 124,219.95 : x
  2. Step 2: Convert to fraction form
    219,718.95/303,220.31 = 124,219.95/x
  3. Step 3: Cross multiply
    219,718.95x = 303,220.31 × 124,219.95
  4. Step 4: Simplify right side
    219,718.95x = 37,666,010,920.66
  5. Step 5: Solve for x
    x = 37,666,010,920.66/219,718.95
  6. Step 6: Final answer
    x = 171,428.14

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