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Finding the Fourth Proportional to 262,931.63, 363,020.82 and 155,536.16

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Solution

The fourth proportional to 262,931.63, 363,020.82 and 155,536.16 is: 214,743.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,931.63 : 363,020.82 = 155,536.16 : x
  2. Step 2: Convert to fraction form
    262,931.63/363,020.82 = 155,536.16/x
  3. Step 3: Cross multiply
    262,931.63x = 363,020.82 × 155,536.16
  4. Step 4: Simplify right side
    262,931.63x = 56,462,864,342.85
  5. Step 5: Solve for x
    x = 56,462,864,342.85/262,931.63
  6. Step 6: Final answer
    x = 214,743.52

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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.