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Finding the Fourth Proportional to 449,439.76, 620,230.08 and 248,235.76

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Solution

The fourth proportional to 449,439.76, 620,230.08 and 248,235.76 is: 342,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,439.76 : 620,230.08 = 248,235.76 : x
  2. Step 2: Convert to fraction form
    449,439.76/620,230.08 = 248,235.76/x
  3. Step 3: Cross multiply
    449,439.76x = 620,230.08 × 248,235.76
  4. Step 4: Simplify right side
    449,439.76x = 153,963,285,283.66
  5. Step 5: Solve for x
    x = 153,963,285,283.66/449,439.76
  6. Step 6: Final answer
    x = 342,567.12

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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.