Home / 300,191.40-450,287.02-142,333.72

Finding the Fourth Proportional to 300,191.40, 450,287.02 and 142,333.72

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Solution

The fourth proportional to 300,191.40, 450,287.02 and 142,333.72 is: 213,500.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,191.40 : 450,287.02 = 142,333.72 : x
  2. Step 2: Convert to fraction form
    300,191.40/450,287.02 = 142,333.72/x
  3. Step 3: Cross multiply
    300,191.40x = 450,287.02 × 142,333.72
  4. Step 4: Simplify right side
    300,191.40x = 64,091,026,624.31
  5. Step 5: Solve for x
    x = 64,091,026,624.31/300,191.40
  6. Step 6: Final answer
    x = 213,500.54

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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.