Home / 330,200.64-455,397.81-228,064.25

Finding the Fourth Proportional to 330,200.64, 455,397.81 and 228,064.25

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Solution

The fourth proportional to 330,200.64, 455,397.81 and 228,064.25 is: 314,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,200.64 : 455,397.81 = 228,064.25 : x
  2. Step 2: Convert to fraction form
    330,200.64/455,397.81 = 228,064.25/x
  3. Step 3: Cross multiply
    330,200.64x = 455,397.81 × 228,064.25
  4. Step 4: Simplify right side
    330,200.64x = 103,859,959,989.29
  5. Step 5: Solve for x
    x = 103,859,959,989.29/330,200.64
  6. Step 6: Final answer
    x = 314,535.91

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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.