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Finding the Fourth Proportional to 253,230.78, 379,846.16 and 103,470.93

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Solution

The fourth proportional to 253,230.78, 379,846.16 and 103,470.93 is: 155,206.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,230.78 : 379,846.16 = 103,470.93 : x
  2. Step 2: Convert to fraction form
    253,230.78/379,846.16 = 103,470.93/x
  3. Step 3: Cross multiply
    253,230.78x = 379,846.16 × 103,470.93
  4. Step 4: Simplify right side
    253,230.78x = 39,303,035,432.13
  5. Step 5: Solve for x
    x = 39,303,035,432.13/253,230.78
  6. Step 6: Final answer
    x = 155,206.39

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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.