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Finding the Fourth Proportional to 242,238.80, 363,212.40 and 124,140.80

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Solution

The fourth proportional to 242,238.80, 363,212.40 and 124,140.80 is: 186,136.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,238.80 : 363,212.40 = 124,140.80 : x
  2. Step 2: Convert to fraction form
    242,238.80/363,212.40 = 124,140.80/x
  3. Step 3: Cross multiply
    242,238.80x = 363,212.40 × 124,140.80
  4. Step 4: Simplify right side
    242,238.80x = 45,089,477,905.92
  5. Step 5: Solve for x
    x = 45,089,477,905.92/242,238.80
  6. Step 6: Final answer
    x = 186,136.48

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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.