Home / 311,927.76-429,952.59-243,824.58

Finding the Fourth Proportional to 311,927.76, 429,952.59 and 243,824.58

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Solution

The fourth proportional to 311,927.76, 429,952.59 and 243,824.58 is: 336,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,927.76 : 429,952.59 = 243,824.58 : x
  2. Step 2: Convert to fraction form
    311,927.76/429,952.59 = 243,824.58/x
  3. Step 3: Cross multiply
    311,927.76x = 429,952.59 × 243,824.58
  4. Step 4: Simplify right side
    311,927.76x = 104,833,009,676.66
  5. Step 5: Solve for x
    x = 104,833,009,676.66/311,927.76
  6. Step 6: Final answer
    x = 336,081.05

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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.