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Finding the Fourth Proportional to 242,556.90, 363,835.35 and 84,768.90

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Solution

The fourth proportional to 242,556.90, 363,835.35 and 84,768.90 is: 127,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,556.90 : 363,835.35 = 84,768.90 : x
  2. Step 2: Convert to fraction form
    242,556.90/363,835.35 = 84,768.90/x
  3. Step 3: Cross multiply
    242,556.90x = 363,835.35 × 84,768.90
  4. Step 4: Simplify right side
    242,556.90x = 30,841,922,400.62
  5. Step 5: Solve for x
    x = 30,841,922,400.62/242,556.90
  6. Step 6: Final answer
    x = 127,153.35

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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.