Home / 447,931.03-618,145.68-243,981.32

Finding the Fourth Proportional to 447,931.03, 618,145.68 and 243,981.32

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Solution

The fourth proportional to 447,931.03, 618,145.68 and 243,981.32 is: 336,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,931.03 : 618,145.68 = 243,981.32 : x
  2. Step 2: Convert to fraction form
    447,931.03/618,145.68 = 243,981.32/x
  3. Step 3: Cross multiply
    447,931.03x = 618,145.68 × 243,981.32
  4. Step 4: Simplify right side
    447,931.03x = 150,815,998,958.70
  5. Step 5: Solve for x
    x = 150,815,998,958.70/447,931.03
  6. Step 6: Final answer
    x = 336,694.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.