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Finding the Fourth Proportional to 258,973.68, 357,390.36 and 145,800.48

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Solution

The fourth proportional to 258,973.68, 357,390.36 and 145,800.48 is: 201,208.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,973.68 : 357,390.36 = 145,800.48 : x
  2. Step 2: Convert to fraction form
    258,973.68/357,390.36 = 145,800.48/x
  3. Step 3: Cross multiply
    258,973.68x = 357,390.36 × 145,800.48
  4. Step 4: Simplify right side
    258,973.68x = 52,107,686,035.37
  5. Step 5: Solve for x
    x = 52,107,686,035.37/258,973.68
  6. Step 6: Final answer
    x = 201,208.42

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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.