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Finding the Fourth Proportional to 305,108.80, 457,533.60 and 147,385.60

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Solution

The fourth proportional to 305,108.80, 457,533.60 and 147,385.60 is: 221,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,108.80 : 457,533.60 = 147,385.60 : x
  2. Step 2: Convert to fraction form
    305,108.80/457,533.60 = 147,385.60/x
  3. Step 3: Cross multiply
    305,108.80x = 457,533.60 × 147,385.60
  4. Step 4: Simplify right side
    305,108.80x = 67,433,864,156.16
  5. Step 5: Solve for x
    x = 67,433,864,156.16/305,108.80
  6. Step 6: Final answer
    x = 221,015.80

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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.