Home / 215,385.51-297,227.07-134,857.43

Finding the Fourth Proportional to 215,385.51, 297,227.07 and 134,857.43

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Solution

The fourth proportional to 215,385.51, 297,227.07 and 134,857.43 is: 186,100.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,385.51 : 297,227.07 = 134,857.43 : x
  2. Step 2: Convert to fraction form
    215,385.51/297,227.07 = 134,857.43/x
  3. Step 3: Cross multiply
    215,385.51x = 297,227.07 × 134,857.43
  4. Step 4: Simplify right side
    215,385.51x = 40,083,278,786.63
  5. Step 5: Solve for x
    x = 40,083,278,786.63/215,385.51
  6. Step 6: Final answer
    x = 186,100.17

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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.