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Finding the Fourth Proportional to 350,963.64, 484,328.40 and 189,818.88

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Solution

The fourth proportional to 350,963.64, 484,328.40 and 189,818.88 is: 261,949.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,963.64 : 484,328.40 = 189,818.88 : x
  2. Step 2: Convert to fraction form
    350,963.64/484,328.40 = 189,818.88/x
  3. Step 3: Cross multiply
    350,963.64x = 484,328.40 × 189,818.88
  4. Step 4: Simplify right side
    350,963.64x = 91,934,674,440.19
  5. Step 5: Solve for x
    x = 91,934,674,440.19/350,963.64
  6. Step 6: Final answer
    x = 261,949.28

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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.