Home / 259,313.04-388,747.69-99,503.66

Finding the Fourth Proportional to 259,313.04, 388,747.69 and 99,503.66

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Solution

The fourth proportional to 259,313.04, 388,747.69 and 99,503.66 is: 149,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,313.04 : 388,747.69 = 99,503.66 : x
  2. Step 2: Convert to fraction form
    259,313.04/388,747.69 = 99,503.66/x
  3. Step 3: Cross multiply
    259,313.04x = 388,747.69 × 99,503.66
  4. Step 4: Simplify right side
    259,313.04x = 38,681,817,971.55
  5. Step 5: Solve for x
    x = 38,681,817,971.55/259,313.04
  6. Step 6: Final answer
    x = 149,170.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.