Home / 258,280.12-356,445.06-145,102.84

Finding the Fourth Proportional to 258,280.12, 356,445.06 and 145,102.84

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Solution

The fourth proportional to 258,280.12, 356,445.06 and 145,102.84 is: 200,252.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,280.12 : 356,445.06 = 145,102.84 : x
  2. Step 2: Convert to fraction form
    258,280.12/356,445.06 = 145,102.84/x
  3. Step 3: Cross multiply
    258,280.12x = 356,445.06 × 145,102.84
  4. Step 4: Simplify right side
    258,280.12x = 51,721,190,509.97
  5. Step 5: Solve for x
    x = 51,721,190,509.97/258,280.12
  6. Step 6: Final answer
    x = 200,252.31

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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.