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Finding the Fourth Proportional to 381,373.07, 526,256.52 and 228,407.34

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Solution

The fourth proportional to 381,373.07, 526,256.52 and 228,407.34 is: 315,179.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,373.07 : 526,256.52 = 228,407.34 : x
  2. Step 2: Convert to fraction form
    381,373.07/526,256.52 = 228,407.34/x
  3. Step 3: Cross multiply
    381,373.07x = 526,256.52 × 228,407.34
  4. Step 4: Simplify right side
    381,373.07x = 120,200,852,021.06
  5. Step 5: Solve for x
    x = 120,200,852,021.06/381,373.07
  6. Step 6: Final answer
    x = 315,179.18

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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.