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Finding the Fourth Proportional to 380,542.26, 570,813.00 and 155,903.10

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Solution

The fourth proportional to 380,542.26, 570,813.00 and 155,903.10 is: 233,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,542.26 : 570,813.00 = 155,903.10 : x
  2. Step 2: Convert to fraction form
    380,542.26/570,813.00 = 155,903.10/x
  3. Step 3: Cross multiply
    380,542.26x = 570,813.00 × 155,903.10
  4. Step 4: Simplify right side
    380,542.26x = 88,991,515,137.65
  5. Step 5: Solve for x
    x = 88,991,515,137.65/380,542.26
  6. Step 6: Final answer
    x = 233,854.49

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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.