Home / 258,228.48-356,423.04-145,087.68

Finding the Fourth Proportional to 258,228.48, 356,423.04 and 145,087.68

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Solution

The fourth proportional to 258,228.48, 356,423.04 and 145,087.68 is: 200,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,228.48 : 356,423.04 = 145,087.68 : x
  2. Step 2: Convert to fraction form
    258,228.48/356,423.04 = 145,087.68/x
  3. Step 3: Cross multiply
    258,228.48x = 356,423.04 × 145,087.68
  4. Step 4: Simplify right side
    258,228.48x = 51,712,591,972.15
  5. Step 5: Solve for x
    x = 51,712,591,972.15/258,228.48
  6. Step 6: Final answer
    x = 200,259.06

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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.