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Finding the Fourth Proportional to 356,176.80, 533,811.60 and 145,576.80

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Solution

The fourth proportional to 356,176.80, 533,811.60 and 145,576.80 is: 218,179.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,176.80 : 533,811.60 = 145,576.80 : x
  2. Step 2: Convert to fraction form
    356,176.80/533,811.60 = 145,576.80/x
  3. Step 3: Cross multiply
    356,176.80x = 533,811.60 × 145,576.80
  4. Step 4: Simplify right side
    356,176.80x = 77,710,584,530.88
  5. Step 5: Solve for x
    x = 77,710,584,530.88/356,176.80
  6. Step 6: Final answer
    x = 218,179.80

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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.