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Finding the Fourth Proportional to 356,707.80, 492,260.79 and 203,766.23

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Solution

The fourth proportional to 356,707.80, 492,260.79 and 203,766.23 is: 281,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,707.80 : 492,260.79 = 203,766.23 : x
  2. Step 2: Convert to fraction form
    356,707.80/492,260.79 = 203,766.23/x
  3. Step 3: Cross multiply
    356,707.80x = 492,260.79 × 203,766.23
  4. Step 4: Simplify right side
    356,707.80x = 100,306,127,349.90
  5. Step 5: Solve for x
    x = 100,306,127,349.90/356,707.80
  6. Step 6: Final answer
    x = 281,199.70

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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.