Home / 209,269.92-288,931.44-160,785.36

Finding the Fourth Proportional to 209,269.92, 288,931.44 and 160,785.36

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Solution

The fourth proportional to 209,269.92, 288,931.44 and 160,785.36 is: 221,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,269.92 : 288,931.44 = 160,785.36 : x
  2. Step 2: Convert to fraction form
    209,269.92/288,931.44 = 160,785.36/x
  3. Step 3: Cross multiply
    209,269.92x = 288,931.44 × 160,785.36
  4. Step 4: Simplify right side
    209,269.92x = 46,455,945,595.72
  5. Step 5: Solve for x
    x = 46,455,945,595.72/209,269.92
  6. Step 6: Final answer
    x = 221,990.55

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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.