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Finding the Fourth Proportional to 242,900.59, 335,203.40 and 135,477.58

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Solution

The fourth proportional to 242,900.59, 335,203.40 and 135,477.58 is: 186,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,900.59 : 335,203.40 = 135,477.58 : x
  2. Step 2: Convert to fraction form
    242,900.59/335,203.40 = 135,477.58/x
  3. Step 3: Cross multiply
    242,900.59x = 335,203.40 × 135,477.58
  4. Step 4: Simplify right side
    242,900.59x = 45,412,543,763.76
  5. Step 5: Solve for x
    x = 45,412,543,763.76/242,900.59
  6. Step 6: Final answer
    x = 186,959.38

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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.