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Finding the Fourth Proportional to 370,292.14, 510,858.49 and 215,217.67

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Solution

The fourth proportional to 370,292.14, 510,858.49 and 215,217.67 is: 296,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,292.14 : 510,858.49 = 215,217.67 : x
  2. Step 2: Convert to fraction form
    370,292.14/510,858.49 = 215,217.67/x
  3. Step 3: Cross multiply
    370,292.14x = 510,858.49 × 215,217.67
  4. Step 4: Simplify right side
    370,292.14x = 109,945,772,102.33
  5. Step 5: Solve for x
    x = 109,945,772,102.33/370,292.14
  6. Step 6: Final answer
    x = 296,916.30

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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.