Home / 379,277.64-523,396.08-209,508.12

Finding the Fourth Proportional to 379,277.64, 523,396.08 and 209,508.12

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Solution

The fourth proportional to 379,277.64, 523,396.08 and 209,508.12 is: 289,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,277.64 : 523,396.08 = 209,508.12 : x
  2. Step 2: Convert to fraction form
    379,277.64/523,396.08 = 209,508.12/x
  3. Step 3: Cross multiply
    379,277.64x = 523,396.08 × 209,508.12
  4. Step 4: Simplify right side
    379,277.64x = 109,655,728,736.17
  5. Step 5: Solve for x
    x = 109,655,728,736.17/379,277.64
  6. Step 6: Final answer
    x = 289,117.30

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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.