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Finding the Fourth Proportional to 340,330.80, 510,496.20 and 140,584.80

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Solution

The fourth proportional to 340,330.80, 510,496.20 and 140,584.80 is: 210,877.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,330.80 : 510,496.20 = 140,584.80 : x
  2. Step 2: Convert to fraction form
    340,330.80/510,496.20 = 140,584.80/x
  3. Step 3: Cross multiply
    340,330.80x = 510,496.20 × 140,584.80
  4. Step 4: Simplify right side
    340,330.80x = 71,768,006,177.76
  5. Step 5: Solve for x
    x = 71,768,006,177.76/340,330.80
  6. Step 6: Final answer
    x = 210,877.20

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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.