Home / 253,103.78-349,272.15-145,677.26

Finding the Fourth Proportional to 253,103.78, 349,272.15 and 145,677.26

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Solution

The fourth proportional to 253,103.78, 349,272.15 and 145,677.26 is: 201,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,103.78 : 349,272.15 = 145,677.26 : x
  2. Step 2: Convert to fraction form
    253,103.78/349,272.15 = 145,677.26/x
  3. Step 3: Cross multiply
    253,103.78x = 349,272.15 × 145,677.26
  4. Step 4: Simplify right side
    253,103.78x = 50,881,009,806.31
  5. Step 5: Solve for x
    x = 50,881,009,806.31/253,103.78
  6. Step 6: Final answer
    x = 201,028.25

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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.