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Finding the Fourth Proportional to 155,028.40, 232,542.60 and 135,345.40

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Solution

The fourth proportional to 155,028.40, 232,542.60 and 135,345.40 is: 203,018.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,028.40 : 232,542.60 = 135,345.40 : x
  2. Step 2: Convert to fraction form
    155,028.40/232,542.60 = 135,345.40/x
  3. Step 3: Cross multiply
    155,028.40x = 232,542.60 × 135,345.40
  4. Step 4: Simplify right side
    155,028.40x = 31,473,571,214.04
  5. Step 5: Solve for x
    x = 31,473,571,214.04/155,028.40
  6. Step 6: Final answer
    x = 203,018.10

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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.