Home / 215,140.32-296,582.40-142,421.36

Finding the Fourth Proportional to 215,140.32, 296,582.40 and 142,421.36

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Solution

The fourth proportional to 215,140.32, 296,582.40 and 142,421.36 is: 196,335.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,140.32 : 296,582.40 = 142,421.36 : x
  2. Step 2: Convert to fraction form
    215,140.32/296,582.40 = 142,421.36/x
  3. Step 3: Cross multiply
    215,140.32x = 296,582.40 × 142,421.36
  4. Step 4: Simplify right side
    215,140.32x = 42,239,667,277.15
  5. Step 5: Solve for x
    x = 42,239,667,277.15/215,140.32
  6. Step 6: Final answer
    x = 196,335.43

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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.