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Finding the Fourth Proportional to 286,525.53, 395,439.72 and 165,696.51

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Solution

The fourth proportional to 286,525.53, 395,439.72 and 165,696.51 is: 228,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,525.53 : 395,439.72 = 165,696.51 : x
  2. Step 2: Convert to fraction form
    286,525.53/395,439.72 = 165,696.51/x
  3. Step 3: Cross multiply
    286,525.53x = 395,439.72 × 165,696.51
  4. Step 4: Simplify right side
    286,525.53x = 65,522,981,519.38
  5. Step 5: Solve for x
    x = 65,522,981,519.38/286,525.53
  6. Step 6: Final answer
    x = 228,681.13

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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.