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Finding the Fourth Proportional to 239,267.40, 358,814.70 and 120,899.40

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Solution

The fourth proportional to 239,267.40, 358,814.70 and 120,899.40 is: 181,305.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,267.40 : 358,814.70 = 120,899.40 : x
  2. Step 2: Convert to fraction form
    239,267.40/358,814.70 = 120,899.40/x
  3. Step 3: Cross multiply
    239,267.40x = 358,814.70 × 120,899.40
  4. Step 4: Simplify right side
    239,267.40x = 43,380,481,941.18
  5. Step 5: Solve for x
    x = 43,380,481,941.18/239,267.40
  6. Step 6: Final answer
    x = 181,305.44

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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.