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Finding the Fourth Proportional to 425,430.93, 587,087.09 and 231,840.33

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Solution

The fourth proportional to 425,430.93, 587,087.09 and 231,840.33 is: 319,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,430.93 : 587,087.09 = 231,840.33 : x
  2. Step 2: Convert to fraction form
    425,430.93/587,087.09 = 231,840.33/x
  3. Step 3: Cross multiply
    425,430.93x = 587,087.09 × 231,840.33
  4. Step 4: Simplify right side
    425,430.93x = 136,110,462,192.96
  5. Step 5: Solve for x
    x = 136,110,462,192.96/425,430.93
  6. Step 6: Final answer
    x = 319,935.51

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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.