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Finding the Fourth Proportional to 326,033.02, 449,405.69 and 257,009.93

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Solution

The fourth proportional to 326,033.02, 449,405.69 and 257,009.93 is: 354,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,033.02 : 449,405.69 = 257,009.93 : x
  2. Step 2: Convert to fraction form
    326,033.02/449,405.69 = 257,009.93/x
  3. Step 3: Cross multiply
    326,033.02x = 449,405.69 × 257,009.93
  4. Step 4: Simplify right side
    326,033.02x = 115,501,723,804.99
  5. Step 5: Solve for x
    x = 115,501,723,804.99/326,033.02
  6. Step 6: Final answer
    x = 354,263.89

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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.