Home / 309,966.65-427,736.15-173,987.93

Finding the Fourth Proportional to 309,966.65, 427,736.15 and 173,987.93

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Solution

The fourth proportional to 309,966.65, 427,736.15 and 173,987.93 is: 240,093.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,966.65 : 427,736.15 = 173,987.93 : x
  2. Step 2: Convert to fraction form
    309,966.65/427,736.15 = 173,987.93/x
  3. Step 3: Cross multiply
    309,966.65x = 427,736.15 × 173,987.93
  4. Step 4: Simplify right side
    309,966.65x = 74,420,925,620.96
  5. Step 5: Solve for x
    x = 74,420,925,620.96/309,966.65
  6. Step 6: Final answer
    x = 240,093.34

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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.