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Finding the Fourth Proportional to 355,355.73, 490,389.75 and 194,210.73

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Solution

The fourth proportional to 355,355.73, 490,389.75 and 194,210.73 is: 268,010.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,355.73 : 490,389.75 = 194,210.73 : x
  2. Step 2: Convert to fraction form
    355,355.73/490,389.75 = 194,210.73/x
  3. Step 3: Cross multiply
    355,355.73x = 490,389.75 × 194,210.73
  4. Step 4: Simplify right side
    355,355.73x = 95,238,951,332.02
  5. Step 5: Solve for x
    x = 95,238,951,332.02/355,355.73
  6. Step 6: Final answer
    x = 268,010.17

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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.