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Finding the Fourth Proportional to 269,015.84, 400,348.04 and 260,046.40

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Solution

The fourth proportional to 269,015.84, 400,348.04 and 260,046.40 is: 386,999.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,015.84 : 400,348.04 = 260,046.40 : x
  2. Step 2: Convert to fraction form
    269,015.84/400,348.04 = 260,046.40/x
  3. Step 3: Cross multiply
    269,015.84x = 400,348.04 × 260,046.40
  4. Step 4: Simplify right side
    269,015.84x = 104,109,066,549.06
  5. Step 5: Solve for x
    x = 104,109,066,549.06/269,015.84
  6. Step 6: Final answer
    x = 386,999.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.