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Finding the Fourth Proportional to 354,402.60, 530,729.10 and 235,429.80

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Solution

The fourth proportional to 354,402.60, 530,729.10 and 235,429.80 is: 352,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,402.60 : 530,729.10 = 235,429.80 : x
  2. Step 2: Convert to fraction form
    354,402.60/530,729.10 = 235,429.80/x
  3. Step 3: Cross multiply
    354,402.60x = 530,729.10 × 235,429.80
  4. Step 4: Simplify right side
    354,402.60x = 124,949,445,867.18
  5. Step 5: Solve for x
    x = 124,949,445,867.18/354,402.60
  6. Step 6: Final answer
    x = 352,563.57

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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.