Home / 256,116.70-383,397.45-228,123.10

Finding the Fourth Proportional to 256,116.70, 383,397.45 and 228,123.10

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Solution

The fourth proportional to 256,116.70, 383,397.45 and 228,123.10 is: 341,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,116.70 : 383,397.45 = 228,123.10 : x
  2. Step 2: Convert to fraction form
    256,116.70/383,397.45 = 228,123.10/x
  3. Step 3: Cross multiply
    256,116.70x = 383,397.45 × 228,123.10
  4. Step 4: Simplify right side
    256,116.70x = 87,461,814,826.10
  5. Step 5: Solve for x
    x = 87,461,814,826.10/256,116.70
  6. Step 6: Final answer
    x = 341,492.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.