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Finding the Fourth Proportional to 305,064.80, 457,467.60 and 147,341.60

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Solution

The fourth proportional to 305,064.80, 457,467.60 and 147,341.60 is: 220,949.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,064.80 : 457,467.60 = 147,341.60 : x
  2. Step 2: Convert to fraction form
    305,064.80/457,467.60 = 147,341.60/x
  3. Step 3: Cross multiply
    305,064.80x = 457,467.60 × 147,341.60
  4. Step 4: Simplify right side
    305,064.80x = 67,404,008,132.16
  5. Step 5: Solve for x
    x = 67,404,008,132.16/305,064.80
  6. Step 6: Final answer
    x = 220,949.81

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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.