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Finding the Fourth Proportional to 356,707.90, 492,258.47 and 195,565.49

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Solution

The fourth proportional to 356,707.90, 492,258.47 and 195,565.49 is: 269,881.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,707.90 : 492,258.47 = 195,565.49 : x
  2. Step 2: Convert to fraction form
    356,707.90/492,258.47 = 195,565.49/x
  3. Step 3: Cross multiply
    356,707.90x = 492,258.47 × 195,565.49
  4. Step 4: Simplify right side
    356,707.90x = 96,268,767,299.05
  5. Step 5: Solve for x
    x = 96,268,767,299.05/356,707.90
  6. Step 6: Final answer
    x = 269,881.23

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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.