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Finding the Fourth Proportional to 317,302.83, 437,714.84 and 208,391.54

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Solution

The fourth proportional to 317,302.83, 437,714.84 and 208,391.54 is: 287,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,302.83 : 437,714.84 = 208,391.54 : x
  2. Step 2: Convert to fraction form
    317,302.83/437,714.84 = 208,391.54/x
  3. Step 3: Cross multiply
    317,302.83x = 437,714.84 × 208,391.54
  4. Step 4: Simplify right side
    317,302.83x = 91,216,066,357.92
  5. Step 5: Solve for x
    x = 91,216,066,357.92/317,302.83
  6. Step 6: Final answer
    x = 287,473.22

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1.5x scale

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.