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Finding the Fourth Proportional to 398,157.20, 597,466.20 and 148,864.40

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Solution

The fourth proportional to 398,157.20, 597,466.20 and 148,864.40 is: 223,382.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,157.20 : 597,466.20 = 148,864.40 : x
  2. Step 2: Convert to fraction form
    398,157.20/597,466.20 = 148,864.40/x
  3. Step 3: Cross multiply
    398,157.20x = 597,466.20 × 148,864.40
  4. Step 4: Simplify right side
    398,157.20x = 88,941,447,383.28
  5. Step 5: Solve for x
    x = 88,941,447,383.28/398,157.20
  6. Step 6: Final answer
    x = 223,382.74

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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.