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Finding the Fourth Proportional to 307,657.20, 461,485.80 and 307,657.20

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Solution

The fourth proportional to 307,657.20, 461,485.80 and 307,657.20 is: 461,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,657.20 : 461,485.80 = 307,657.20 : x
  2. Step 2: Convert to fraction form
    307,657.20/461,485.80 = 307,657.20/x
  3. Step 3: Cross multiply
    307,657.20x = 461,485.80 × 307,657.20
  4. Step 4: Simplify right side
    307,657.20x = 141,979,429,067.76
  5. Step 5: Solve for x
    x = 141,979,429,067.76/307,657.20
  6. Step 6: Final answer
    x = 461,485.80

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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.