Home / 215,439.95-296,665.18-210,660.45

Finding the Fourth Proportional to 215,439.95, 296,665.18 and 210,660.45

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Solution

The fourth proportional to 215,439.95, 296,665.18 and 210,660.45 is: 290,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,439.95 : 296,665.18 = 210,660.45 : x
  2. Step 2: Convert to fraction form
    215,439.95/296,665.18 = 210,660.45/x
  3. Step 3: Cross multiply
    215,439.95x = 296,665.18 × 210,660.45
  4. Step 4: Simplify right side
    215,439.95x = 62,495,619,863.95
  5. Step 5: Solve for x
    x = 62,495,619,863.95/215,439.95
  6. Step 6: Final answer
    x = 290,083.71

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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.