Home / 304,935.75-420,811.34-185,703.75

Finding the Fourth Proportional to 304,935.75, 420,811.34 and 185,703.75

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Solution

The fourth proportional to 304,935.75, 420,811.34 and 185,703.75 is: 256,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,935.75 : 420,811.34 = 185,703.75 : x
  2. Step 2: Convert to fraction form
    304,935.75/420,811.34 = 185,703.75/x
  3. Step 3: Cross multiply
    304,935.75x = 420,811.34 × 185,703.75
  4. Step 4: Simplify right side
    304,935.75x = 78,146,242,952.01
  5. Step 5: Solve for x
    x = 78,146,242,952.01/304,935.75
  6. Step 6: Final answer
    x = 256,271.18

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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.