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Finding the Fourth Proportional to 306,008.40, 458,564.40 and 274,418.40

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Solution

The fourth proportional to 306,008.40, 458,564.40 and 274,418.40 is: 411,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,008.40 : 458,564.40 = 274,418.40 : x
  2. Step 2: Convert to fraction form
    306,008.40/458,564.40 = 274,418.40/x
  3. Step 3: Cross multiply
    306,008.40x = 458,564.40 × 274,418.40
  4. Step 4: Simplify right side
    306,008.40x = 125,838,508,944.96
  5. Step 5: Solve for x
    x = 125,838,508,944.96/306,008.40
  6. Step 6: Final answer
    x = 411,225.67

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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.