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Finding the Fourth Proportional to 470,908.88, 649,862.36 and 256,050.39

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Solution

The fourth proportional to 470,908.88, 649,862.36 and 256,050.39 is: 353,353.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,908.88 : 649,862.36 = 256,050.39 : x
  2. Step 2: Convert to fraction form
    470,908.88/649,862.36 = 256,050.39/x
  3. Step 3: Cross multiply
    470,908.88x = 649,862.36 × 256,050.39
  4. Step 4: Simplify right side
    470,908.88x = 166,397,509,444.07
  5. Step 5: Solve for x
    x = 166,397,509,444.07/470,908.88
  6. Step 6: Final answer
    x = 353,353.95

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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.