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Finding the Fourth Proportional to 220,580.44, 304,237.90 and 139,938.36

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Solution

The fourth proportional to 220,580.44, 304,237.90 and 139,938.36 is: 193,011.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,580.44 : 304,237.90 = 139,938.36 : x
  2. Step 2: Convert to fraction form
    220,580.44/304,237.90 = 139,938.36/x
  3. Step 3: Cross multiply
    220,580.44x = 304,237.90 × 139,938.36
  4. Step 4: Simplify right side
    220,580.44x = 42,574,552,775.84
  5. Step 5: Solve for x
    x = 42,574,552,775.84/220,580.44
  6. Step 6: Final answer
    x = 193,011.46

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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.