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Finding the Fourth Proportional to 355,500.71, 490,590.94 and 194,355.72

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Solution

The fourth proportional to 355,500.71, 490,590.94 and 194,355.72 is: 268,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,500.71 : 490,590.94 = 194,355.72 : x
  2. Step 2: Convert to fraction form
    355,500.71/490,590.94 = 194,355.72/x
  3. Step 3: Cross multiply
    355,500.71x = 490,590.94 × 194,355.72
  4. Step 4: Simplify right side
    355,500.71x = 95,349,155,369.18
  5. Step 5: Solve for x
    x = 95,349,155,369.18/355,500.71
  6. Step 6: Final answer
    x = 268,210.87

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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.