Home / 221,465.60-305,582.28-130,836.32

Finding the Fourth Proportional to 221,465.60, 305,582.28 and 130,836.32

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Solution

The fourth proportional to 221,465.60, 305,582.28 and 130,836.32 is: 180,530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,465.60 : 305,582.28 = 130,836.32 : x
  2. Step 2: Convert to fraction form
    221,465.60/305,582.28 = 130,836.32/x
  3. Step 3: Cross multiply
    221,465.60x = 305,582.28 × 130,836.32
  4. Step 4: Simplify right side
    221,465.60x = 39,981,260,972.41
  5. Step 5: Solve for x
    x = 39,981,260,972.41/221,465.60
  6. Step 6: Final answer
    x = 180,530.34

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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.