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Finding the Fourth Proportional to 330,768.95, 456,718.26 and 254,167.31

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Solution

The fourth proportional to 330,768.95, 456,718.26 and 254,167.31 is: 350,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,768.95 : 456,718.26 = 254,167.31 : x
  2. Step 2: Convert to fraction form
    330,768.95/456,718.26 = 254,167.31/x
  3. Step 3: Cross multiply
    330,768.95x = 456,718.26 × 254,167.31
  4. Step 4: Simplify right side
    330,768.95x = 116,082,849,288.49
  5. Step 5: Solve for x
    x = 116,082,849,288.49/330,768.95
  6. Step 6: Final answer
    x = 350,948.45

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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.