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Finding the Fourth Proportional to 355,499.60, 533,249.40 and 307,806.80

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Solution

The fourth proportional to 355,499.60, 533,249.40 and 307,806.80 is: 461,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,499.60 : 533,249.40 = 307,806.80 : x
  2. Step 2: Convert to fraction form
    355,499.60/533,249.40 = 307,806.80/x
  3. Step 3: Cross multiply
    355,499.60x = 533,249.40 × 307,806.80
  4. Step 4: Simplify right side
    355,499.60x = 164,137,791,415.92
  5. Step 5: Solve for x
    x = 164,137,791,415.92/355,499.60
  6. Step 6: Final answer
    x = 461,710.20

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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.