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Finding the Fourth Proportional to 440,139, 607,399.02 and 238,935

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Solution

The fourth proportional to 440,139, 607,399.02 and 238,935 is: 329,734.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,139 : 607,399.02 = 238,935 : x
  2. Step 2: Convert to fraction form
    440,139/607,399.02 = 238,935/x
  3. Step 3: Cross multiply
    440,139x = 607,399.02 × 238,935
  4. Step 4: Simplify right side
    440,139x = 145,128,884,843.70
  5. Step 5: Solve for x
    x = 145,128,884,843.70/440,139
  6. Step 6: Final answer
    x = 329,734.21

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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.