Home / 345,823.11-517,655.21-254,741.20

Finding the Fourth Proportional to 345,823.11, 517,655.21 and 254,741.20

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Solution

The fourth proportional to 345,823.11, 517,655.21 and 254,741.20 is: 381,316.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,823.11 : 517,655.21 = 254,741.20 : x
  2. Step 2: Convert to fraction form
    345,823.11/517,655.21 = 254,741.20/x
  3. Step 3: Cross multiply
    345,823.11x = 517,655.21 × 254,741.20
  4. Step 4: Simplify right side
    345,823.11x = 131,868,106,813.81
  5. Step 5: Solve for x
    x = 131,868,106,813.81/345,823.11
  6. Step 6: Final answer
    x = 381,316.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.