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Finding the Fourth Proportional to 354,646.10, 531,969.15 and 325,615.70

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Solution

The fourth proportional to 354,646.10, 531,969.15 and 325,615.70 is: 488,423.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,646.10 : 531,969.15 = 325,615.70 : x
  2. Step 2: Convert to fraction form
    354,646.10/531,969.15 = 325,615.70/x
  3. Step 3: Cross multiply
    354,646.10x = 531,969.15 × 325,615.70
  4. Step 4: Simplify right side
    354,646.10x = 173,217,507,155.66
  5. Step 5: Solve for x
    x = 173,217,507,155.66/354,646.10
  6. Step 6: Final answer
    x = 488,423.55

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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.