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Finding the Fourth Proportional to 356,740.20, 535,110.30 and 146,269.80

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Solution

The fourth proportional to 356,740.20, 535,110.30 and 146,269.80 is: 219,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,740.20 : 535,110.30 = 146,269.80 : x
  2. Step 2: Convert to fraction form
    356,740.20/535,110.30 = 146,269.80/x
  3. Step 3: Cross multiply
    356,740.20x = 535,110.30 × 146,269.80
  4. Step 4: Simplify right side
    356,740.20x = 78,270,476,558.94
  5. Step 5: Solve for x
    x = 78,270,476,558.94/356,740.20
  6. Step 6: Final answer
    x = 219,404.70

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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.