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Finding the Fourth Proportional to 239,253.40, 358,793.70 and 120,885.40

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Solution

The fourth proportional to 239,253.40, 358,793.70 and 120,885.40 is: 181,284.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,253.40 : 358,793.70 = 120,885.40 : x
  2. Step 2: Convert to fraction form
    239,253.40/358,793.70 = 120,885.40/x
  3. Step 3: Cross multiply
    239,253.40x = 358,793.70 × 120,885.40
  4. Step 4: Simplify right side
    239,253.40x = 43,372,919,941.98
  5. Step 5: Solve for x
    x = 43,372,919,941.98/239,253.40
  6. Step 6: Final answer
    x = 181,284.45

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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.