Home / 221,575.41-305,738.01-130,918.77

Finding the Fourth Proportional to 221,575.41, 305,738.01 and 130,918.77

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Solution

The fourth proportional to 221,575.41, 305,738.01 and 130,918.77 is: 180,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,575.41 : 305,738.01 = 130,918.77 : x
  2. Step 2: Convert to fraction form
    221,575.41/305,738.01 = 130,918.77/x
  3. Step 3: Cross multiply
    221,575.41x = 305,738.01 × 130,918.77
  4. Step 4: Simplify right side
    221,575.41x = 40,026,844,211.45
  5. Step 5: Solve for x
    x = 40,026,844,211.45/221,575.41
  6. Step 6: Final answer
    x = 180,646.60

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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.