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Finding the Fourth Proportional to 328,546.80, 492,881.04 and 103,963.77

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Solution

The fourth proportional to 328,546.80, 492,881.04 and 103,963.77 is: 155,964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,546.80 : 492,881.04 = 103,963.77 : x
  2. Step 2: Convert to fraction form
    328,546.80/492,881.04 = 103,963.77/x
  3. Step 3: Cross multiply
    328,546.80x = 492,881.04 × 103,963.77
  4. Step 4: Simplify right side
    328,546.80x = 51,241,771,079.92
  5. Step 5: Solve for x
    x = 51,241,771,079.92/328,546.80
  6. Step 6: Final answer
    x = 155,964.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.