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Finding the Fourth Proportional to 225,189.28, 310,787.85 and 127,075.06

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Solution

The fourth proportional to 225,189.28, 310,787.85 and 127,075.06 is: 175,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,189.28 : 310,787.85 = 127,075.06 : x
  2. Step 2: Convert to fraction form
    225,189.28/310,787.85 = 127,075.06/x
  3. Step 3: Cross multiply
    225,189.28x = 310,787.85 × 127,075.06
  4. Step 4: Simplify right side
    225,189.28x = 39,493,384,686.02
  5. Step 5: Solve for x
    x = 39,493,384,686.02/225,189.28
  6. Step 6: Final answer
    x = 175,378.62

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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.