Home / 343,464.20-515,196.30-305,410.40

Finding the Fourth Proportional to 343,464.20, 515,196.30 and 305,410.40

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Solution

The fourth proportional to 343,464.20, 515,196.30 and 305,410.40 is: 458,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,464.20 : 515,196.30 = 305,410.40 : x
  2. Step 2: Convert to fraction form
    343,464.20/515,196.30 = 305,410.40/x
  3. Step 3: Cross multiply
    343,464.20x = 515,196.30 × 305,410.40
  4. Step 4: Simplify right side
    343,464.20x = 157,346,308,061.52
  5. Step 5: Solve for x
    x = 157,346,308,061.52/343,464.20
  6. Step 6: Final answer
    x = 458,115.60

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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.