Home / 335,655.12-503,484-135,979.28

Finding the Fourth Proportional to 335,655.12, 503,484 and 135,979.28

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Solution

The fourth proportional to 335,655.12, 503,484 and 135,979.28 is: 203,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,655.12 : 503,484 = 135,979.28 : x
  2. Step 2: Convert to fraction form
    335,655.12/503,484 = 135,979.28/x
  3. Step 3: Cross multiply
    335,655.12x = 503,484 × 135,979.28
  4. Step 4: Simplify right side
    335,655.12x = 68,463,391,811.52
  5. Step 5: Solve for x
    x = 68,463,391,811.52/335,655.12
  6. Step 6: Final answer
    x = 203,969.45

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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.