Home / 382,931.28-528,454.44-213,176.88

Finding the Fourth Proportional to 382,931.28, 528,454.44 and 213,176.88

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Solution

The fourth proportional to 382,931.28, 528,454.44 and 213,176.88 is: 294,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,931.28 : 528,454.44 = 213,176.88 : x
  2. Step 2: Convert to fraction form
    382,931.28/528,454.44 = 213,176.88/x
  3. Step 3: Cross multiply
    382,931.28x = 528,454.44 × 213,176.88
  4. Step 4: Simplify right side
    382,931.28x = 112,654,268,741.35
  5. Step 5: Solve for x
    x = 112,654,268,741.35/382,931.28
  6. Step 6: Final answer
    x = 294,189.26

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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.