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Finding the Fourth Proportional to 367,330.60, 550,218.30 and 288,015.40

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Solution

The fourth proportional to 367,330.60, 550,218.30 and 288,015.40 is: 431,413.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,330.60 : 550,218.30 = 288,015.40 : x
  2. Step 2: Convert to fraction form
    367,330.60/550,218.30 = 288,015.40/x
  3. Step 3: Cross multiply
    367,330.60x = 550,218.30 × 288,015.40
  4. Step 4: Simplify right side
    367,330.60x = 158,471,343,761.82
  5. Step 5: Solve for x
    x = 158,471,343,761.82/367,330.60
  6. Step 6: Final answer
    x = 431,413.40

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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.