Home / 286,998.90-430,265.07-100,141.62

Finding the Fourth Proportional to 286,998.90, 430,265.07 and 100,141.62

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Solution

The fourth proportional to 286,998.90, 430,265.07 and 100,141.62 is: 150,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,998.90 : 430,265.07 = 100,141.62 : x
  2. Step 2: Convert to fraction form
    286,998.90/430,265.07 = 100,141.62/x
  3. Step 3: Cross multiply
    286,998.90x = 430,265.07 × 100,141.62
  4. Step 4: Simplify right side
    286,998.90x = 43,087,441,139.21
  5. Step 5: Solve for x
    x = 43,087,441,139.21/286,998.90
  6. Step 6: Final answer
    x = 150,131.03

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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.