Home / 472,421.07-708,486.25-135,371.36

Finding the Fourth Proportional to 472,421.07, 708,486.25 and 135,371.36

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Solution

The fourth proportional to 472,421.07, 708,486.25 and 135,371.36 is: 203,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,421.07 : 708,486.25 = 135,371.36 : x
  2. Step 2: Convert to fraction form
    472,421.07/708,486.25 = 135,371.36/x
  3. Step 3: Cross multiply
    472,421.07x = 708,486.25 × 135,371.36
  4. Step 4: Simplify right side
    472,421.07x = 95,908,743,661.37
  5. Step 5: Solve for x
    x = 95,908,743,661.37/472,421.07
  6. Step 6: Final answer
    x = 203,015.38

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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.