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Finding the Fourth Proportional to 387,973.64, 535,100.30 and 252,051.38

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Solution

The fourth proportional to 387,973.64, 535,100.30 and 252,051.38 is: 347,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,973.64 : 535,100.30 = 252,051.38 : x
  2. Step 2: Convert to fraction form
    387,973.64/535,100.30 = 252,051.38/x
  3. Step 3: Cross multiply
    387,973.64x = 535,100.30 × 252,051.38
  4. Step 4: Simplify right side
    387,973.64x = 134,872,765,117.66
  5. Step 5: Solve for x
    x = 134,872,765,117.66/387,973.64
  6. Step 6: Final answer
    x = 347,633.84

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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.