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Finding the Fourth Proportional to 293,575.60, 440,435.40 and 135,770.80

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Solution

The fourth proportional to 293,575.60, 440,435.40 and 135,770.80 is: 203,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,575.60 : 440,435.40 = 135,770.80 : x
  2. Step 2: Convert to fraction form
    293,575.60/440,435.40 = 135,770.80/x
  3. Step 3: Cross multiply
    293,575.60x = 440,435.40 × 135,770.80
  4. Step 4: Simplify right side
    293,575.60x = 59,798,266,606.32
  5. Step 5: Solve for x
    x = 59,798,266,606.32/293,575.60
  6. Step 6: Final answer
    x = 203,689.50

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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.