Home / 447,930.03-618,144.30-243,980.32

Finding the Fourth Proportional to 447,930.03, 618,144.30 and 243,980.32

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Solution

The fourth proportional to 447,930.03, 618,144.30 and 243,980.32 is: 336,693.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,930.03 : 618,144.30 = 243,980.32 : x
  2. Step 2: Convert to fraction form
    447,930.03/618,144.30 = 243,980.32/x
  3. Step 3: Cross multiply
    447,930.03x = 618,144.30 × 243,980.32
  4. Step 4: Simplify right side
    447,930.03x = 150,815,039,809.55
  5. Step 5: Solve for x
    x = 150,815,039,809.55/447,930.03
  6. Step 6: Final answer
    x = 336,693.30

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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.