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Finding the Fourth Proportional to 242,160.32, 363,225.78 and 90,328.12

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Solution

The fourth proportional to 242,160.32, 363,225.78 and 90,328.12 is: 135,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,160.32 : 363,225.78 = 90,328.12 : x
  2. Step 2: Convert to fraction form
    242,160.32/363,225.78 = 90,328.12/x
  3. Step 3: Cross multiply
    242,160.32x = 363,225.78 × 90,328.12
  4. Step 4: Simplify right side
    242,160.32x = 32,809,500,934.87
  5. Step 5: Solve for x
    x = 32,809,500,934.87/242,160.32
  6. Step 6: Final answer
    x = 135,486.69

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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.