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Finding the Fourth Proportional to 356,863.90, 492,477.10 and 195,708.32

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Solution

The fourth proportional to 356,863.90, 492,477.10 and 195,708.32 is: 270,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,863.90 : 492,477.10 = 195,708.32 : x
  2. Step 2: Convert to fraction form
    356,863.90/492,477.10 = 195,708.32/x
  3. Step 3: Cross multiply
    356,863.90x = 492,477.10 × 195,708.32
  4. Step 4: Simplify right side
    356,863.90x = 96,381,865,879.47
  5. Step 5: Solve for x
    x = 96,381,865,879.47/356,863.90
  6. Step 6: Final answer
    x = 270,080.18

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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.