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Finding the Fourth Proportional to 371,737.66, 512,991.66 and 201,970.57

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Solution

The fourth proportional to 371,737.66, 512,991.66 and 201,970.57 is: 278,715.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,737.66 : 512,991.66 = 201,970.57 : x
  2. Step 2: Convert to fraction form
    371,737.66/512,991.66 = 201,970.57/x
  3. Step 3: Cross multiply
    371,737.66x = 512,991.66 × 201,970.57
  4. Step 4: Simplify right side
    371,737.66x = 103,609,217,975.45
  5. Step 5: Solve for x
    x = 103,609,217,975.45/371,737.66
  6. Step 6: Final answer
    x = 278,715.96

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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.