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Finding the Fourth Proportional to 352,019.60, 528,029.40 and 202,720.40

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Solution

The fourth proportional to 352,019.60, 528,029.40 and 202,720.40 is: 304,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,019.60 : 528,029.40 = 202,720.40 : x
  2. Step 2: Convert to fraction form
    352,019.60/528,029.40 = 202,720.40/x
  3. Step 3: Cross multiply
    352,019.60x = 528,029.40 × 202,720.40
  4. Step 4: Simplify right side
    352,019.60x = 107,042,331,179.76
  5. Step 5: Solve for x
    x = 107,042,331,179.76/352,019.60
  6. Step 6: Final answer
    x = 304,080.60

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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.