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Finding the Fourth Proportional to 428,117.64, 590,794.50 and 237,130.44

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Solution

The fourth proportional to 428,117.64, 590,794.50 and 237,130.44 is: 327,235.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,117.64 : 590,794.50 = 237,130.44 : x
  2. Step 2: Convert to fraction form
    428,117.64/590,794.50 = 237,130.44/x
  3. Step 3: Cross multiply
    428,117.64x = 590,794.50 × 237,130.44
  4. Step 4: Simplify right side
    428,117.64x = 140,095,359,734.58
  5. Step 5: Solve for x
    x = 140,095,359,734.58/428,117.64
  6. Step 6: Final answer
    x = 327,235.66

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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.