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Finding the Fourth Proportional to 428,352.54, 591,130.02 and 237,369.12

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Solution

The fourth proportional to 428,352.54, 591,130.02 and 237,369.12 is: 327,571.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,352.54 : 591,130.02 = 237,369.12 : x
  2. Step 2: Convert to fraction form
    428,352.54/591,130.02 = 237,369.12/x
  3. Step 3: Cross multiply
    428,352.54x = 591,130.02 × 237,369.12
  4. Step 4: Simplify right side
    428,352.54x = 140,316,012,652.98
  5. Step 5: Solve for x
    x = 140,316,012,652.98/428,352.54
  6. Step 6: Final answer
    x = 327,571.33

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1.5x scale

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.