Home / 409,432.19-565,033.75-228,144.20

Finding the Fourth Proportional to 409,432.19, 565,033.75 and 228,144.20

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Solution

The fourth proportional to 409,432.19, 565,033.75 and 228,144.20 is: 314,848.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,432.19 : 565,033.75 = 228,144.20 : x
  2. Step 2: Convert to fraction form
    409,432.19/565,033.75 = 228,144.20/x
  3. Step 3: Cross multiply
    409,432.19x = 565,033.75 × 228,144.20
  4. Step 4: Simplify right side
    409,432.19x = 128,909,173,708.97
  5. Step 5: Solve for x
    x = 128,909,173,708.97/409,432.19
  6. Step 6: Final answer
    x = 314,848.65

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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.