Home / 326,129.70-489,228.03-112,897.32

Finding the Fourth Proportional to 326,129.70, 489,228.03 and 112,897.32

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Solution

The fourth proportional to 326,129.70, 489,228.03 and 112,897.32 is: 169,357.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,129.70 : 489,228.03 = 112,897.32 : x
  2. Step 2: Convert to fraction form
    326,129.70/489,228.03 = 112,897.32/x
  3. Step 3: Cross multiply
    326,129.70x = 489,228.03 × 112,897.32
  4. Step 4: Simplify right side
    326,129.70x = 55,232,533,455.88
  5. Step 5: Solve for x
    x = 55,232,533,455.88/326,129.70
  6. Step 6: Final answer
    x = 169,357.57

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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.