Home / 450,322.09-621,342.72-268,998.53

Finding the Fourth Proportional to 450,322.09, 621,342.72 and 268,998.53

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Solution

The fourth proportional to 450,322.09, 621,342.72 and 268,998.53 is: 371,157.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,322.09 : 621,342.72 = 268,998.53 : x
  2. Step 2: Convert to fraction form
    450,322.09/621,342.72 = 268,998.53/x
  3. Step 3: Cross multiply
    450,322.09x = 621,342.72 × 268,998.53
  4. Step 4: Simplify right side
    450,322.09x = 167,140,275,199.49
  5. Step 5: Solve for x
    x = 167,140,275,199.49/450,322.09
  6. Step 6: Final answer
    x = 371,157.18

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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.