Home / 211,192.56-291,496.86-130,571.46

Finding the Fourth Proportional to 211,192.56, 291,496.86 and 130,571.46

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Solution

The fourth proportional to 211,192.56, 291,496.86 and 130,571.46 is: 180,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,192.56 : 291,496.86 = 130,571.46 : x
  2. Step 2: Convert to fraction form
    211,192.56/291,496.86 = 130,571.46/x
  3. Step 3: Cross multiply
    211,192.56x = 291,496.86 × 130,571.46
  4. Step 4: Simplify right side
    211,192.56x = 38,061,170,595.62
  5. Step 5: Solve for x
    x = 38,061,170,595.62/211,192.56
  6. Step 6: Final answer
    x = 180,220.22

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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.