Home / 209,039.86-288,364.44-132,423.81

Finding the Fourth Proportional to 209,039.86, 288,364.44 and 132,423.81

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Solution

The fourth proportional to 209,039.86, 288,364.44 and 132,423.81 is: 182,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,039.86 : 288,364.44 = 132,423.81 : x
  2. Step 2: Convert to fraction form
    209,039.86/288,364.44 = 132,423.81/x
  3. Step 3: Cross multiply
    209,039.86x = 288,364.44 × 132,423.81
  4. Step 4: Simplify right side
    209,039.86x = 38,186,317,813.32
  5. Step 5: Solve for x
    x = 38,186,317,813.32/209,039.86
  6. Step 6: Final answer
    x = 182,674.82

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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.