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Finding the Fourth Proportional to 490,878.61, 736,330.44 and 135,895.69

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Solution

The fourth proportional to 490,878.61, 736,330.44 and 135,895.69 is: 203,847.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,878.61 : 736,330.44 = 135,895.69 : x
  2. Step 2: Convert to fraction form
    490,878.61/736,330.44 = 135,895.69/x
  3. Step 3: Cross multiply
    490,878.61x = 736,330.44 × 135,895.69
  4. Step 4: Simplify right side
    490,878.61x = 100,064,133,211.80
  5. Step 5: Solve for x
    x = 100,064,133,211.80/490,878.61
  6. Step 6: Final answer
    x = 203,847.00

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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.