Home / 316,388.15-436,609.81-173,145.32

Finding the Fourth Proportional to 316,388.15, 436,609.81 and 173,145.32

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Solution

The fourth proportional to 316,388.15, 436,609.81 and 173,145.32 is: 238,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,388.15 : 436,609.81 = 173,145.32 : x
  2. Step 2: Convert to fraction form
    316,388.15/436,609.81 = 173,145.32/x
  3. Step 3: Cross multiply
    316,388.15x = 436,609.81 × 173,145.32
  4. Step 4: Simplify right side
    316,388.15x = 75,596,945,267.59
  5. Step 5: Solve for x
    x = 75,596,945,267.59/316,388.15
  6. Step 6: Final answer
    x = 238,937.35

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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.