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Finding the Fourth Proportional to 202,454.71, 279,389.59 and 111,812.94

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Solution

The fourth proportional to 202,454.71, 279,389.59 and 111,812.94 is: 154,303.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,454.71 : 279,389.59 = 111,812.94 : x
  2. Step 2: Convert to fraction form
    202,454.71/279,389.59 = 111,812.94/x
  3. Step 3: Cross multiply
    202,454.71x = 279,389.59 × 111,812.94
  4. Step 4: Simplify right side
    202,454.71x = 31,239,371,183.76
  5. Step 5: Solve for x
    x = 31,239,371,183.76/202,454.71
  6. Step 6: Final answer
    x = 154,303.01

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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.