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Finding the Fourth Proportional to 243,064.80, 335,448.52 and 134,190.78

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Solution

The fourth proportional to 243,064.80, 335,448.52 and 134,190.78 is: 185,193.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,064.80 : 335,448.52 = 134,190.78 : x
  2. Step 2: Convert to fraction form
    243,064.80/335,448.52 = 134,190.78/x
  3. Step 3: Cross multiply
    243,064.80x = 335,448.52 × 134,190.78
  4. Step 4: Simplify right side
    243,064.80x = 45,014,097,710.06
  5. Step 5: Solve for x
    x = 45,014,097,710.06/243,064.80
  6. Step 6: Final answer
    x = 185,193.82

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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.