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Finding the Fourth Proportional to 343,307.60, 514,961.40 and 325,811.60

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Solution

The fourth proportional to 343,307.60, 514,961.40 and 325,811.60 is: 488,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,307.60 : 514,961.40 = 325,811.60 : x
  2. Step 2: Convert to fraction form
    343,307.60/514,961.40 = 325,811.60/x
  3. Step 3: Cross multiply
    343,307.60x = 514,961.40 × 325,811.60
  4. Step 4: Simplify right side
    343,307.60x = 167,780,397,672.24
  5. Step 5: Solve for x
    x = 167,780,397,672.24/343,307.60
  6. Step 6: Final answer
    x = 488,717.40

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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.