Home / 251,436.81-346,982.80-138,259.56

Finding the Fourth Proportional to 251,436.81, 346,982.80 and 138,259.56

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Solution

The fourth proportional to 251,436.81, 346,982.80 and 138,259.56 is: 190,798.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,436.81 : 346,982.80 = 138,259.56 : x
  2. Step 2: Convert to fraction form
    251,436.81/346,982.80 = 138,259.56/x
  3. Step 3: Cross multiply
    251,436.81x = 346,982.80 × 138,259.56
  4. Step 4: Simplify right side
    251,436.81x = 47,973,689,255.57
  5. Step 5: Solve for x
    x = 47,973,689,255.57/251,436.81
  6. Step 6: Final answer
    x = 190,798.19

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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.