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Finding the Fourth Proportional to 289,801.80, 434,529.90 and 149,833.80

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Solution

The fourth proportional to 289,801.80, 434,529.90 and 149,833.80 is: 224,661.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,801.80 : 434,529.90 = 149,833.80 : x
  2. Step 2: Convert to fraction form
    289,801.80/434,529.90 = 149,833.80/x
  3. Step 3: Cross multiply
    289,801.80x = 434,529.90 × 149,833.80
  4. Step 4: Simplify right side
    289,801.80x = 65,107,266,130.62
  5. Step 5: Solve for x
    x = 65,107,266,130.62/289,801.80
  6. Step 6: Final answer
    x = 224,661.36

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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.