Home / 286,187.38-429,281.10-99,198.88

Finding the Fourth Proportional to 286,187.38, 429,281.10 and 99,198.88

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Solution

The fourth proportional to 286,187.38, 429,281.10 and 99,198.88 is: 148,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,187.38 : 429,281.10 = 99,198.88 : x
  2. Step 2: Convert to fraction form
    286,187.38/429,281.10 = 99,198.88/x
  3. Step 3: Cross multiply
    286,187.38x = 429,281.10 × 99,198.88
  4. Step 4: Simplify right side
    286,187.38x = 42,584,204,325.17
  5. Step 5: Solve for x
    x = 42,584,204,325.17/286,187.38
  6. Step 6: Final answer
    x = 148,798.33

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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.