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Finding the Fourth Proportional to 449,433.60, 620,206.08 and 248,217.60

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Solution

The fourth proportional to 449,433.60, 620,206.08 and 248,217.60 is: 342,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,433.60 : 620,206.08 = 248,217.60 : x
  2. Step 2: Convert to fraction form
    449,433.60/620,206.08 = 248,217.60/x
  3. Step 3: Cross multiply
    449,433.60x = 620,206.08 × 248,217.60
  4. Step 4: Simplify right side
    449,433.60x = 153,946,064,683.01
  5. Step 5: Solve for x
    x = 153,946,064,683.01/449,433.60
  6. Step 6: Final answer
    x = 342,533.50

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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.