Home / 309,928.93-427,669.07-173,977.85

Finding the Fourth Proportional to 309,928.93, 427,669.07 and 173,977.85

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Solution

The fourth proportional to 309,928.93, 427,669.07 and 173,977.85 is: 240,070.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,928.93 : 427,669.07 = 173,977.85 : x
  2. Step 2: Convert to fraction form
    309,928.93/427,669.07 = 173,977.85/x
  3. Step 3: Cross multiply
    309,928.93x = 427,669.07 × 173,977.85
  4. Step 4: Simplify right side
    309,928.93x = 74,404,945,509.38
  5. Step 5: Solve for x
    x = 74,404,945,509.38/309,928.93
  6. Step 6: Final answer
    x = 240,070.99

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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.