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Finding the Fourth Proportional to 355,710.08, 490,873.52 and 194,563.72

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Solution

The fourth proportional to 355,710.08, 490,873.52 and 194,563.72 is: 268,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,710.08 : 490,873.52 = 194,563.72 : x
  2. Step 2: Convert to fraction form
    355,710.08/490,873.52 = 194,563.72/x
  3. Step 3: Cross multiply
    355,710.08x = 490,873.52 × 194,563.72
  4. Step 4: Simplify right side
    355,710.08x = 95,506,178,106.27
  5. Step 5: Solve for x
    x = 95,506,178,106.27/355,710.08
  6. Step 6: Final answer
    x = 268,494.44

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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.