Home / 286,667.14-430,000.79-84,263.26

Finding the Fourth Proportional to 286,667.14, 430,000.79 and 84,263.26

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Solution

The fourth proportional to 286,667.14, 430,000.79 and 84,263.26 is: 126,394.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,667.14 : 430,000.79 = 84,263.26 : x
  2. Step 2: Convert to fraction form
    286,667.14/430,000.79 = 84,263.26/x
  3. Step 3: Cross multiply
    286,667.14x = 430,000.79 × 84,263.26
  4. Step 4: Simplify right side
    286,667.14x = 36,233,266,539.39
  5. Step 5: Solve for x
    x = 36,233,266,539.39/286,667.14
  6. Step 6: Final answer
    x = 126,394.91

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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.