Home / 300,046.08-450,071.28-89,685.84

Finding the Fourth Proportional to 300,046.08, 450,071.28 and 89,685.84

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Solution

The fourth proportional to 300,046.08, 450,071.28 and 89,685.84 is: 134,529.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,046.08 : 450,071.28 = 89,685.84 : x
  2. Step 2: Convert to fraction form
    300,046.08/450,071.28 = 89,685.84/x
  3. Step 3: Cross multiply
    300,046.08x = 450,071.28 × 89,685.84
  4. Step 4: Simplify right side
    300,046.08x = 40,365,020,806.68
  5. Step 5: Solve for x
    x = 40,365,020,806.68/300,046.08
  6. Step 6: Final answer
    x = 134,529.41

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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.