Home / 380,682.12-570,979.02-100,221.24

Finding the Fourth Proportional to 380,682.12, 570,979.02 and 100,221.24

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Solution

The fourth proportional to 380,682.12, 570,979.02 and 100,221.24 is: 150,320.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,682.12 : 570,979.02 = 100,221.24 : x
  2. Step 2: Convert to fraction form
    380,682.12/570,979.02 = 100,221.24/x
  3. Step 3: Cross multiply
    380,682.12x = 570,979.02 × 100,221.24
  4. Step 4: Simplify right side
    380,682.12x = 57,224,225,398.38
  5. Step 5: Solve for x
    x = 57,224,225,398.38/380,682.12
  6. Step 6: Final answer
    x = 150,320.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.