Home / 258,412.04-356,609.94-145,233.80

Finding the Fourth Proportional to 258,412.04, 356,609.94 and 145,233.80

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Solution

The fourth proportional to 258,412.04, 356,609.94 and 145,233.80 is: 200,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,412.04 : 356,609.94 = 145,233.80 : x
  2. Step 2: Convert to fraction form
    258,412.04/356,609.94 = 145,233.80/x
  3. Step 3: Cross multiply
    258,412.04x = 356,609.94 × 145,233.80
  4. Step 4: Simplify right side
    258,412.04x = 51,791,816,703.97
  5. Step 5: Solve for x
    x = 51,791,816,703.97/258,412.04
  6. Step 6: Final answer
    x = 200,423.39

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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.