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Finding the Fourth Proportional to 449,533.68, 620,303.64 and 248,317.68

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Solution

The fourth proportional to 449,533.68, 620,303.64 and 248,317.68 is: 342,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,533.68 : 620,303.64 = 248,317.68 : x
  2. Step 2: Convert to fraction form
    449,533.68/620,303.64 = 248,317.68/x
  3. Step 3: Cross multiply
    449,533.68x = 620,303.64 × 248,317.68
  4. Step 4: Simplify right side
    449,533.68x = 154,032,360,780.36
  5. Step 5: Solve for x
    x = 154,032,360,780.36/449,533.68
  6. Step 6: Final answer
    x = 342,649.21

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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.