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Finding the Fourth Proportional to 351,266.64, 484,759.70 and 215,274.32

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Solution

The fourth proportional to 351,266.64, 484,759.70 and 215,274.32 is: 297,085.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,266.64 : 484,759.70 = 215,274.32 : x
  2. Step 2: Convert to fraction form
    351,266.64/484,759.70 = 215,274.32/x
  3. Step 3: Cross multiply
    351,266.64x = 484,759.70 × 215,274.32
  4. Step 4: Simplify right side
    351,266.64x = 104,356,314,780.90
  5. Step 5: Solve for x
    x = 104,356,314,780.90/351,266.64
  6. Step 6: Final answer
    x = 297,085.75

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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.