Home / 242,875.08-335,156.40-135,439.92

Finding the Fourth Proportional to 242,875.08, 335,156.40 and 135,439.92

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Solution

The fourth proportional to 242,875.08, 335,156.40 and 135,439.92 is: 186,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,875.08 : 335,156.40 = 135,439.92 : x
  2. Step 2: Convert to fraction form
    242,875.08/335,156.40 = 135,439.92/x
  3. Step 3: Cross multiply
    242,875.08x = 335,156.40 × 135,439.92
  4. Step 4: Simplify right side
    242,875.08x = 45,393,556,003.49
  5. Step 5: Solve for x
    x = 45,393,556,003.49/242,875.08
  6. Step 6: Final answer
    x = 186,900.84

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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.