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Finding the Fourth Proportional to 303,607.20, 455,686.20 and 153,951.60

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Solution

The fourth proportional to 303,607.20, 455,686.20 and 153,951.60 is: 231,067.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,607.20 : 455,686.20 = 153,951.60 : x
  2. Step 2: Convert to fraction form
    303,607.20/455,686.20 = 153,951.60/x
  3. Step 3: Cross multiply
    303,607.20x = 455,686.20 × 153,951.60
  4. Step 4: Simplify right side
    303,607.20x = 70,153,619,587.92
  5. Step 5: Solve for x
    x = 70,153,619,587.92/303,607.20
  6. Step 6: Final answer
    x = 231,067.05

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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.