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Finding the Fourth Proportional to 370,507.87, 511,315.13 and 225,271.94

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Solution

The fourth proportional to 370,507.87, 511,315.13 and 225,271.94 is: 310,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,507.87 : 511,315.13 = 225,271.94 : x
  2. Step 2: Convert to fraction form
    370,507.87/511,315.13 = 225,271.94/x
  3. Step 3: Cross multiply
    370,507.87x = 511,315.13 × 225,271.94
  4. Step 4: Simplify right side
    370,507.87x = 115,184,949,293.06
  5. Step 5: Solve for x
    x = 115,184,949,293.06/370,507.87
  6. Step 6: Final answer
    x = 310,883.95

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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.