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Finding the Fourth Proportional to 268,490.61, 370,519.56 and 147,632.67

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Solution

The fourth proportional to 268,490.61, 370,519.56 and 147,632.67 is: 203,734.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,490.61 : 370,519.56 = 147,632.67 : x
  2. Step 2: Convert to fraction form
    268,490.61/370,519.56 = 147,632.67/x
  3. Step 3: Cross multiply
    268,490.61x = 370,519.56 × 147,632.67
  4. Step 4: Simplify right side
    268,490.61x = 54,700,791,930.03
  5. Step 5: Solve for x
    x = 54,700,791,930.03/268,490.61
  6. Step 6: Final answer
    x = 203,734.47

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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.