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Finding the Fourth Proportional to 289,800.80, 434,528.40 and 149,832.80

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Solution

The fourth proportional to 289,800.80, 434,528.40 and 149,832.80 is: 224,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,800.80 : 434,528.40 = 149,832.80 : x
  2. Step 2: Convert to fraction form
    289,800.80/434,528.40 = 149,832.80/x
  3. Step 3: Cross multiply
    289,800.80x = 434,528.40 × 149,832.80
  4. Step 4: Simplify right side
    289,800.80x = 65,106,606,851.52
  5. Step 5: Solve for x
    x = 65,106,606,851.52/289,800.80
  6. Step 6: Final answer
    x = 224,659.86

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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.