Home / 300,348.68-450,538-89,966.58

Finding the Fourth Proportional to 300,348.68, 450,538 and 89,966.58

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Solution

The fourth proportional to 300,348.68, 450,538 and 89,966.58 is: 134,954.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,348.68 : 450,538 = 89,966.58 : x
  2. Step 2: Convert to fraction form
    300,348.68/450,538 = 89,966.58/x
  3. Step 3: Cross multiply
    300,348.68x = 450,538 × 89,966.58
  4. Step 4: Simplify right side
    300,348.68x = 40,533,363,020.04
  5. Step 5: Solve for x
    x = 40,533,363,020.04/300,348.68
  6. Step 6: Final answer
    x = 134,954.36

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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.