Home / 215,787.46-297,825.51-135,284.80

Finding the Fourth Proportional to 215,787.46, 297,825.51 and 135,284.80

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Solution

The fourth proportional to 215,787.46, 297,825.51 and 135,284.80 is: 186,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,787.46 : 297,825.51 = 135,284.80 : x
  2. Step 2: Convert to fraction form
    215,787.46/297,825.51 = 135,284.80/x
  3. Step 3: Cross multiply
    215,787.46x = 297,825.51 × 135,284.80
  4. Step 4: Simplify right side
    215,787.46x = 40,291,264,555.25
  5. Step 5: Solve for x
    x = 40,291,264,555.25/215,787.46
  6. Step 6: Final answer
    x = 186,717.36

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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.