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Finding the Fourth Proportional to 268,526.95, 402,790.43 and 127,859.11

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Solution

The fourth proportional to 268,526.95, 402,790.43 and 127,859.11 is: 191,788.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,526.95 : 402,790.43 = 127,859.11 : x
  2. Step 2: Convert to fraction form
    268,526.95/402,790.43 = 127,859.11/x
  3. Step 3: Cross multiply
    268,526.95x = 402,790.43 × 127,859.11
  4. Step 4: Simplify right side
    268,526.95x = 51,500,425,208.99
  5. Step 5: Solve for x
    x = 51,500,425,208.99/268,526.95
  6. Step 6: Final answer
    x = 191,788.67

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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.