Home / 399,210.36-551,002.92-263,268.84

Finding the Fourth Proportional to 399,210.36, 551,002.92 and 263,268.84

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Solution

The fourth proportional to 399,210.36, 551,002.92 and 263,268.84 is: 363,372.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,210.36 : 551,002.92 = 263,268.84 : x
  2. Step 2: Convert to fraction form
    399,210.36/551,002.92 = 263,268.84/x
  3. Step 3: Cross multiply
    399,210.36x = 551,002.92 × 263,268.84
  4. Step 4: Simplify right side
    399,210.36x = 145,061,899,585.01
  5. Step 5: Solve for x
    x = 145,061,899,585.01/399,210.36
  6. Step 6: Final answer
    x = 363,372.08

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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.