Home / 316,456.32-436,709.40-173,215.08

Finding the Fourth Proportional to 316,456.32, 436,709.40 and 173,215.08

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Solution

The fourth proportional to 316,456.32, 436,709.40 and 173,215.08 is: 239,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,456.32 : 436,709.40 = 173,215.08 : x
  2. Step 2: Convert to fraction form
    316,456.32/436,709.40 = 173,215.08/x
  3. Step 3: Cross multiply
    316,456.32x = 436,709.40 × 173,215.08
  4. Step 4: Simplify right side
    316,456.32x = 75,644,653,657.75
  5. Step 5: Solve for x
    x = 75,644,653,657.75/316,456.32
  6. Step 6: Final answer
    x = 239,036.63

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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.