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Finding the Fourth Proportional to 338,159.40, 507,200.70 and 88,866.60

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Solution

The fourth proportional to 338,159.40, 507,200.70 and 88,866.60 is: 133,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,159.40 : 507,200.70 = 88,866.60 : x
  2. Step 2: Convert to fraction form
    338,159.40/507,200.70 = 88,866.60/x
  3. Step 3: Cross multiply
    338,159.40x = 507,200.70 × 88,866.60
  4. Step 4: Simplify right side
    338,159.40x = 45,073,201,726.62
  5. Step 5: Solve for x
    x = 45,073,201,726.62/338,159.40
  6. Step 6: Final answer
    x = 133,289.81

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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.