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Finding the Fourth Proportional to 272,033.60, 407,765.68 and 103,448.56

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Solution

The fourth proportional to 272,033.60, 407,765.68 and 103,448.56 is: 155,064.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,033.60 : 407,765.68 = 103,448.56 : x
  2. Step 2: Convert to fraction form
    272,033.60/407,765.68 = 103,448.56/x
  3. Step 3: Cross multiply
    272,033.60x = 407,765.68 × 103,448.56
  4. Step 4: Simplify right side
    272,033.60x = 42,182,772,413.42
  5. Step 5: Solve for x
    x = 42,182,772,413.42/272,033.60
  6. Step 6: Final answer
    x = 155,064.57

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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.