Home / 291,905.83-402,829.86-157,769.83

Finding the Fourth Proportional to 291,905.83, 402,829.86 and 157,769.83

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Solution

The fourth proportional to 291,905.83, 402,829.86 and 157,769.83 is: 217,722.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,905.83 : 402,829.86 = 157,769.83 : x
  2. Step 2: Convert to fraction form
    291,905.83/402,829.86 = 157,769.83/x
  3. Step 3: Cross multiply
    291,905.83x = 402,829.86 × 157,769.83
  4. Step 4: Simplify right side
    291,905.83x = 63,554,397,524.05
  5. Step 5: Solve for x
    x = 63,554,397,524.05/291,905.83
  6. Step 6: Final answer
    x = 217,722.26

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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.