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Finding the Fourth Proportional to 286,216.60, 429,324.90 and 202,235.80

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Solution

The fourth proportional to 286,216.60, 429,324.90 and 202,235.80 is: 303,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,216.60 : 429,324.90 = 202,235.80 : x
  2. Step 2: Convert to fraction form
    286,216.60/429,324.90 = 202,235.80/x
  3. Step 3: Cross multiply
    286,216.60x = 429,324.90 × 202,235.80
  4. Step 4: Simplify right side
    286,216.60x = 86,824,864,611.42
  5. Step 5: Solve for x
    x = 86,824,864,611.42/286,216.60
  6. Step 6: Final answer
    x = 303,353.70

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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.