Home / 309,277.62-426,765.75-173,280.39

Finding the Fourth Proportional to 309,277.62, 426,765.75 and 173,280.39

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Solution

The fourth proportional to 309,277.62, 426,765.75 and 173,280.39 is: 239,106.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,277.62 : 426,765.75 = 173,280.39 : x
  2. Step 2: Convert to fraction form
    309,277.62/426,765.75 = 173,280.39/x
  3. Step 3: Cross multiply
    309,277.62x = 426,765.75 × 173,280.39
  4. Step 4: Simplify right side
    309,277.62x = 73,950,135,598.64
  5. Step 5: Solve for x
    x = 73,950,135,598.64/309,277.62
  6. Step 6: Final answer
    x = 239,106.00

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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.