Home / 220,938.40-304,929.62-130,304.34

Finding the Fourth Proportional to 220,938.40, 304,929.62 and 130,304.34

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Solution

The fourth proportional to 220,938.40, 304,929.62 and 130,304.34 is: 179,840.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,938.40 : 304,929.62 = 130,304.34 : x
  2. Step 2: Convert to fraction form
    220,938.40/304,929.62 = 130,304.34/x
  3. Step 3: Cross multiply
    220,938.40x = 304,929.62 × 130,304.34
  4. Step 4: Simplify right side
    220,938.40x = 39,733,652,880.55
  5. Step 5: Solve for x
    x = 39,733,652,880.55/220,938.40
  6. Step 6: Final answer
    x = 179,840.41

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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.