Home / 305,504.38-421,576.98-184,574.20

Finding the Fourth Proportional to 305,504.38, 421,576.98 and 184,574.20

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Solution

The fourth proportional to 305,504.38, 421,576.98 and 184,574.20 is: 254,700.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,504.38 : 421,576.98 = 184,574.20 : x
  2. Step 2: Convert to fraction form
    305,504.38/421,576.98 = 184,574.20/x
  3. Step 3: Cross multiply
    305,504.38x = 421,576.98 × 184,574.20
  4. Step 4: Simplify right side
    305,504.38x = 77,812,233,821.92
  5. Step 5: Solve for x
    x = 77,812,233,821.92/305,504.38
  6. Step 6: Final answer
    x = 254,700.88

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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.