Home / 283,743.07-391,568.04-156,423.22

Finding the Fourth Proportional to 283,743.07, 391,568.04 and 156,423.22

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Solution

The fourth proportional to 283,743.07, 391,568.04 and 156,423.22 is: 215,865.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,743.07 : 391,568.04 = 156,423.22 : x
  2. Step 2: Convert to fraction form
    283,743.07/391,568.04 = 156,423.22/x
  3. Step 3: Cross multiply
    283,743.07x = 391,568.04 × 156,423.22
  4. Step 4: Simplify right side
    283,743.07x = 61,250,333,665.89
  5. Step 5: Solve for x
    x = 61,250,333,665.89/283,743.07
  6. Step 6: Final answer
    x = 215,865.48

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1.5x scale

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.