Home / 283,400.40-391,089.96-156,073.26

Finding the Fourth Proportional to 283,400.40, 391,089.96 and 156,073.26

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Solution

The fourth proportional to 283,400.40, 391,089.96 and 156,073.26 is: 215,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,400.40 : 391,089.96 = 156,073.26 : x
  2. Step 2: Convert to fraction form
    283,400.40/391,089.96 = 156,073.26/x
  3. Step 3: Cross multiply
    283,400.40x = 391,089.96 × 156,073.26
  4. Step 4: Simplify right side
    283,400.40x = 61,038,685,010.47
  5. Step 5: Solve for x
    x = 61,038,685,010.47/283,400.40
  6. Step 6: Final answer
    x = 215,379.67

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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.