Home / 221,966.22-306,314.56-121,364.22

Finding the Fourth Proportional to 221,966.22, 306,314.56 and 121,364.22

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Solution

The fourth proportional to 221,966.22, 306,314.56 and 121,364.22 is: 167,483.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,966.22 : 306,314.56 = 121,364.22 : x
  2. Step 2: Convert to fraction form
    221,966.22/306,314.56 = 121,364.22/x
  3. Step 3: Cross multiply
    221,966.22x = 306,314.56 × 121,364.22
  4. Step 4: Simplify right side
    221,966.22x = 37,175,625,814.06
  5. Step 5: Solve for x
    x = 37,175,625,814.06/221,966.22
  6. Step 6: Final answer
    x = 167,483.26

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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.