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Finding the Fourth Proportional to 351,389.76, 526,056.48 and 217,867.20

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Solution

The fourth proportional to 351,389.76, 526,056.48 and 217,867.20 is: 326,163.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,389.76 : 526,056.48 = 217,867.20 : x
  2. Step 2: Convert to fraction form
    351,389.76/526,056.48 = 217,867.20/x
  3. Step 3: Cross multiply
    351,389.76x = 526,056.48 × 217,867.20
  4. Step 4: Simplify right side
    351,389.76x = 114,610,452,339.46
  5. Step 5: Solve for x
    x = 114,610,452,339.46/351,389.76
  6. Step 6: Final answer
    x = 326,163.32

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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.