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Finding the Fourth Proportional to 245,464.80, 368,197.20 and 145,737.60

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Solution

The fourth proportional to 245,464.80, 368,197.20 and 145,737.60 is: 218,606.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,464.80 : 368,197.20 = 145,737.60 : x
  2. Step 2: Convert to fraction form
    245,464.80/368,197.20 = 145,737.60/x
  3. Step 3: Cross multiply
    245,464.80x = 368,197.20 × 145,737.60
  4. Step 4: Simplify right side
    245,464.80x = 53,660,176,254.72
  5. Step 5: Solve for x
    x = 53,660,176,254.72/245,464.80
  6. Step 6: Final answer
    x = 218,606.40

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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.