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Finding the Fourth Proportional to 242,839.69, 335,118.77 and 142,237.69

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Solution

The fourth proportional to 242,839.69, 335,118.77 and 142,237.69 is: 196,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,839.69 : 335,118.77 = 142,237.69 : x
  2. Step 2: Convert to fraction form
    242,839.69/335,118.77 = 142,237.69/x
  3. Step 3: Cross multiply
    242,839.69x = 335,118.77 × 142,237.69
  4. Step 4: Simplify right side
    242,839.69x = 47,666,518,704.85
  5. Step 5: Solve for x
    x = 47,666,518,704.85/242,839.69
  6. Step 6: Final answer
    x = 196,288.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.