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Finding the Fourth Proportional to 220,907.88, 304,838.35 and 130,259.46

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Solution

The fourth proportional to 220,907.88, 304,838.35 and 130,259.46 is: 179,749.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,907.88 : 304,838.35 = 130,259.46 : x
  2. Step 2: Convert to fraction form
    220,907.88/304,838.35 = 130,259.46/x
  3. Step 3: Cross multiply
    220,907.88x = 304,838.35 × 130,259.46
  4. Step 4: Simplify right side
    220,907.88x = 39,708,078,858.29
  5. Step 5: Solve for x
    x = 39,708,078,858.29/220,907.88
  6. Step 6: Final answer
    x = 179,749.49

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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.