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Finding the Fourth Proportional to 286,477.20, 429,780.60 and 168,087.60

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Solution

The fourth proportional to 286,477.20, 429,780.60 and 168,087.60 is: 252,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,477.20 : 429,780.60 = 168,087.60 : x
  2. Step 2: Convert to fraction form
    286,477.20/429,780.60 = 168,087.60/x
  3. Step 3: Cross multiply
    286,477.20x = 429,780.60 × 168,087.60
  4. Step 4: Simplify right side
    286,477.20x = 72,240,789,580.56
  5. Step 5: Solve for x
    x = 72,240,789,580.56/286,477.20
  6. Step 6: Final answer
    x = 252,169.42

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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.