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Finding the Fourth Proportional to 200,070.20, 299,449.20 and 155,455.40

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Solution

The fourth proportional to 200,070.20, 299,449.20 and 155,455.40 is: 232,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,070.20 : 299,449.20 = 155,455.40 : x
  2. Step 2: Convert to fraction form
    200,070.20/299,449.20 = 155,455.40/x
  3. Step 3: Cross multiply
    200,070.20x = 299,449.20 × 155,455.40
  4. Step 4: Simplify right side
    200,070.20x = 46,550,995,165.68
  5. Step 5: Solve for x
    x = 46,550,995,165.68/200,070.20
  6. Step 6: Final answer
    x = 232,673.31

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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.