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Finding the Fourth Proportional to 398,265.60, 597,398.40 and 148,934.40

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Solution

The fourth proportional to 398,265.60, 597,398.40 and 148,934.40 is: 223,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,265.60 : 597,398.40 = 148,934.40 : x
  2. Step 2: Convert to fraction form
    398,265.60/597,398.40 = 148,934.40/x
  3. Step 3: Cross multiply
    398,265.60x = 597,398.40 × 148,934.40
  4. Step 4: Simplify right side
    398,265.60x = 88,973,172,264.96
  5. Step 5: Solve for x
    x = 88,973,172,264.96/398,265.60
  6. Step 6: Final answer
    x = 223,401.60

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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.