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Finding the Fourth Proportional to 371,806.11, 513,100.02 and 202,051.17

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Solution

The fourth proportional to 371,806.11, 513,100.02 and 202,051.17 is: 278,834.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,806.11 : 513,100.02 = 202,051.17 : x
  2. Step 2: Convert to fraction form
    371,806.11/513,100.02 = 202,051.17/x
  3. Step 3: Cross multiply
    371,806.11x = 513,100.02 × 202,051.17
  4. Step 4: Simplify right side
    371,806.11x = 103,672,459,368.02
  5. Step 5: Solve for x
    x = 103,672,459,368.02/371,806.11
  6. Step 6: Final answer
    x = 278,834.74

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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.