Home / 278,887.10-384,732.94-202,238.07

Finding the Fourth Proportional to 278,887.10, 384,732.94 and 202,238.07

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Solution

The fourth proportional to 278,887.10, 384,732.94 and 202,238.07 is: 278,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,887.10 : 384,732.94 = 202,238.07 : x
  2. Step 2: Convert to fraction form
    278,887.10/384,732.94 = 202,238.07/x
  3. Step 3: Cross multiply
    278,887.10x = 384,732.94 × 202,238.07
  4. Step 4: Simplify right side
    278,887.10x = 77,807,645,681.88
  5. Step 5: Solve for x
    x = 77,807,645,681.88/278,887.10
  6. Step 6: Final answer
    x = 278,993.35

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1.5x scale

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.