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Finding the Fourth Proportional to 357,626.80, 535,565.40 and 170,419.60

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Solution

The fourth proportional to 357,626.80, 535,565.40 and 170,419.60 is: 255,212.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,626.80 : 535,565.40 = 170,419.60 : x
  2. Step 2: Convert to fraction form
    357,626.80/535,565.40 = 170,419.60/x
  3. Step 3: Cross multiply
    357,626.80x = 535,565.40 × 170,419.60
  4. Step 4: Simplify right side
    357,626.80x = 91,270,841,241.84
  5. Step 5: Solve for x
    x = 91,270,841,241.84/357,626.80
  6. Step 6: Final answer
    x = 255,212.53

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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.