Home / 221,746.28-306,009.80-119,771.64

Finding the Fourth Proportional to 221,746.28, 306,009.80 and 119,771.64

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Solution

The fourth proportional to 221,746.28, 306,009.80 and 119,771.64 is: 165,284.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,746.28 : 306,009.80 = 119,771.64 : x
  2. Step 2: Convert to fraction form
    221,746.28/306,009.80 = 119,771.64/x
  3. Step 3: Cross multiply
    221,746.28x = 306,009.80 × 119,771.64
  4. Step 4: Simplify right side
    221,746.28x = 36,651,295,602.07
  5. Step 5: Solve for x
    x = 36,651,295,602.07/221,746.28
  6. Step 6: Final answer
    x = 165,284.83

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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.