Home / 380,968.11-571,483.28-191,330.94

Finding the Fourth Proportional to 380,968.11, 571,483.28 and 191,330.94

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Solution

The fourth proportional to 380,968.11, 571,483.28 and 191,330.94 is: 287,012.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,968.11 : 571,483.28 = 191,330.94 : x
  2. Step 2: Convert to fraction form
    380,968.11/571,483.28 = 191,330.94/x
  3. Step 3: Cross multiply
    380,968.11x = 571,483.28 × 191,330.94
  4. Step 4: Simplify right side
    380,968.11x = 109,342,433,635.01
  5. Step 5: Solve for x
    x = 109,342,433,635.01/380,968.11
  6. Step 6: Final answer
    x = 287,012.04

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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.