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Finding the Fourth Proportional to 355,089.60, 532,634.40 and 307,396.80

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Solution

The fourth proportional to 355,089.60, 532,634.40 and 307,396.80 is: 461,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,089.60 : 532,634.40 = 307,396.80 : x
  2. Step 2: Convert to fraction form
    355,089.60/532,634.40 = 307,396.80/x
  3. Step 3: Cross multiply
    355,089.60x = 532,634.40 × 307,396.80
  4. Step 4: Simplify right side
    355,089.60x = 163,730,110,129.92
  5. Step 5: Solve for x
    x = 163,730,110,129.92/355,089.60
  6. Step 6: Final answer
    x = 461,095.20

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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.