Home / 253,235.18-379,712.54-103,580.56

Finding the Fourth Proportional to 253,235.18, 379,712.54 and 103,580.56

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Solution

The fourth proportional to 253,235.18, 379,712.54 and 103,580.56 is: 155,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,235.18 : 379,712.54 = 103,580.56 : x
  2. Step 2: Convert to fraction form
    253,235.18/379,712.54 = 103,580.56/x
  3. Step 3: Cross multiply
    253,235.18x = 379,712.54 × 103,580.56
  4. Step 4: Simplify right side
    253,235.18x = 39,330,838,265.81
  5. Step 5: Solve for x
    x = 39,330,838,265.81/253,235.18
  6. Step 6: Final answer
    x = 155,313.48

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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.