Home / 283,837.46-391,667.01-156,509.78

Finding the Fourth Proportional to 283,837.46, 391,667.01 and 156,509.78

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Solution

The fourth proportional to 283,837.46, 391,667.01 and 156,509.78 is: 215,967.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,837.46 : 391,667.01 = 156,509.78 : x
  2. Step 2: Convert to fraction form
    283,837.46/391,667.01 = 156,509.78/x
  3. Step 3: Cross multiply
    283,837.46x = 391,667.01 × 156,509.78
  4. Step 4: Simplify right side
    283,837.46x = 61,299,717,568.36
  5. Step 5: Solve for x
    x = 61,299,717,568.36/283,837.46
  6. Step 6: Final answer
    x = 215,967.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.