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Finding the Fourth Proportional to 268,765.76, 370,912.08 and 154,063.52

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Solution

The fourth proportional to 268,765.76, 370,912.08 and 154,063.52 is: 212,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,765.76 : 370,912.08 = 154,063.52 : x
  2. Step 2: Convert to fraction form
    268,765.76/370,912.08 = 154,063.52/x
  3. Step 3: Cross multiply
    268,765.76x = 370,912.08 × 154,063.52
  4. Step 4: Simplify right side
    268,765.76x = 57,144,020,655.32
  5. Step 5: Solve for x
    x = 57,144,020,655.32/268,765.76
  6. Step 6: Final answer
    x = 212,616.45

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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.