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Finding the Fourth Proportional to 286,651.29, 395,583.48 and 157,595.13

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Solution

The fourth proportional to 286,651.29, 395,583.48 and 157,595.13 is: 217,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,651.29 : 395,583.48 = 157,595.13 : x
  2. Step 2: Convert to fraction form
    286,651.29/395,583.48 = 157,595.13/x
  3. Step 3: Cross multiply
    286,651.29x = 395,583.48 × 157,595.13
  4. Step 4: Simplify right side
    286,651.29x = 62,342,029,956.45
  5. Step 5: Solve for x
    x = 62,342,029,956.45/286,651.29
  6. Step 6: Final answer
    x = 217,483.86

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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.