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Finding the Fourth Proportional to 286,247.80, 429,371.70 and 168,052.60

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Solution

The fourth proportional to 286,247.80, 429,371.70 and 168,052.60 is: 252,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,247.80 : 429,371.70 = 168,052.60 : x
  2. Step 2: Convert to fraction form
    286,247.80/429,371.70 = 168,052.60/x
  3. Step 3: Cross multiply
    286,247.80x = 429,371.70 × 168,052.60
  4. Step 4: Simplify right side
    286,247.80x = 72,157,030,551.42
  5. Step 5: Solve for x
    x = 72,157,030,551.42/286,247.80
  6. Step 6: Final answer
    x = 252,078.90

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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.