Home / 371,895.84-513,219.64-202,130.38

Finding the Fourth Proportional to 371,895.84, 513,219.64 and 202,130.38

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Solution

The fourth proportional to 371,895.84, 513,219.64 and 202,130.38 is: 278,941.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,895.84 : 513,219.64 = 202,130.38 : x
  2. Step 2: Convert to fraction form
    371,895.84/513,219.64 = 202,130.38/x
  3. Step 3: Cross multiply
    371,895.84x = 513,219.64 × 202,130.38
  4. Step 4: Simplify right side
    371,895.84x = 103,737,280,856.66
  5. Step 5: Solve for x
    x = 103,737,280,856.66/371,895.84
  6. Step 6: Final answer
    x = 278,941.76

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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.