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Finding the Fourth Proportional to 222,870.37, 307,486.30 and 127,309.40

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Solution

The fourth proportional to 222,870.37, 307,486.30 and 127,309.40 is: 175,644.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,870.37 : 307,486.30 = 127,309.40 : x
  2. Step 2: Convert to fraction form
    222,870.37/307,486.30 = 127,309.40/x
  3. Step 3: Cross multiply
    222,870.37x = 307,486.30 × 127,309.40
  4. Step 4: Simplify right side
    222,870.37x = 39,145,896,361.22
  5. Step 5: Solve for x
    x = 39,145,896,361.22/222,870.37
  6. Step 6: Final answer
    x = 175,644.24

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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.