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Finding the Fourth Proportional to 445,536.40, 668,304.60 and 130,025.20

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Solution

The fourth proportional to 445,536.40, 668,304.60 and 130,025.20 is: 195,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,536.40 : 668,304.60 = 130,025.20 : x
  2. Step 2: Convert to fraction form
    445,536.40/668,304.60 = 130,025.20/x
  3. Step 3: Cross multiply
    445,536.40x = 668,304.60 × 130,025.20
  4. Step 4: Simplify right side
    445,536.40x = 86,896,439,275.92
  5. Step 5: Solve for x
    x = 86,896,439,275.92/445,536.40
  6. Step 6: Final answer
    x = 195,037.80

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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.