Home / 383,400.48-529,085.58-208,972.19

Finding the Fourth Proportional to 383,400.48, 529,085.58 and 208,972.19

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Solution

The fourth proportional to 383,400.48, 529,085.58 and 208,972.19 is: 288,377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,400.48 : 529,085.58 = 208,972.19 : x
  2. Step 2: Convert to fraction form
    383,400.48/529,085.58 = 208,972.19/x
  3. Step 3: Cross multiply
    383,400.48x = 529,085.58 × 208,972.19
  4. Step 4: Simplify right side
    383,400.48x = 110,564,172,350.02
  5. Step 5: Solve for x
    x = 110,564,172,350.02/383,400.48
  6. Step 6: Final answer
    x = 288,377.76

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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.