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Finding the Fourth Proportional to 286,166.44, 429,258.89 and 143,934.10

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Solution

The fourth proportional to 286,166.44, 429,258.89 and 143,934.10 is: 215,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,166.44 : 429,258.89 = 143,934.10 : x
  2. Step 2: Convert to fraction form
    286,166.44/429,258.89 = 143,934.10/x
  3. Step 3: Cross multiply
    286,166.44x = 429,258.89 × 143,934.10
  4. Step 4: Simplify right side
    286,166.44x = 61,784,993,096.77
  5. Step 5: Solve for x
    x = 61,784,993,096.77/286,166.44
  6. Step 6: Final answer
    x = 215,905.79

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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.