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Finding the Fourth Proportional to 293,433.60, 439,640.10 and 135,337.80

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Solution

The fourth proportional to 293,433.60, 439,640.10 and 135,337.80 is: 202,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,433.60 : 439,640.10 = 135,337.80 : x
  2. Step 2: Convert to fraction form
    293,433.60/439,640.10 = 135,337.80/x
  3. Step 3: Cross multiply
    293,433.60x = 439,640.10 × 135,337.80
  4. Step 4: Simplify right side
    293,433.60x = 59,499,923,925.78
  5. Step 5: Solve for x
    x = 59,499,923,925.78/293,433.60
  6. Step 6: Final answer
    x = 202,771.34

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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.