Home / 221,459.80-305,526.36-136,429.24

Finding the Fourth Proportional to 221,459.80, 305,526.36 and 136,429.24

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Solution

The fourth proportional to 221,459.80, 305,526.36 and 136,429.24 is: 188,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,459.80 : 305,526.36 = 136,429.24 : x
  2. Step 2: Convert to fraction form
    221,459.80/305,526.36 = 136,429.24/x
  3. Step 3: Cross multiply
    221,459.80x = 305,526.36 × 136,429.24
  4. Step 4: Simplify right side
    221,459.80x = 41,682,729,094.77
  5. Step 5: Solve for x
    x = 41,682,729,094.77/221,459.80
  6. Step 6: Final answer
    x = 188,218.04

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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.