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Finding the Fourth Proportional to 428,225.60, 590,956.08 and 237,242

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Solution

The fourth proportional to 428,225.60, 590,956.08 and 237,242 is: 327,396.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,225.60 : 590,956.08 = 237,242 : x
  2. Step 2: Convert to fraction form
    428,225.60/590,956.08 = 237,242/x
  3. Step 3: Cross multiply
    428,225.60x = 590,956.08 × 237,242
  4. Step 4: Simplify right side
    428,225.60x = 140,199,602,331.36
  5. Step 5: Solve for x
    x = 140,199,602,331.36/428,225.60
  6. Step 6: Final answer
    x = 327,396.59

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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.