Home / 316,277.31-474,416.41-129,288.81

Finding the Fourth Proportional to 316,277.31, 474,416.41 and 129,288.81

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Solution

The fourth proportional to 316,277.31, 474,416.41 and 129,288.81 is: 193,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,277.31 : 474,416.41 = 129,288.81 : x
  2. Step 2: Convert to fraction form
    316,277.31/474,416.41 = 129,288.81/x
  3. Step 3: Cross multiply
    316,277.31x = 474,416.41 × 129,288.81
  4. Step 4: Simplify right side
    316,277.31x = 61,336,733,093.37
  5. Step 5: Solve for x
    x = 61,336,733,093.37/316,277.31
  6. Step 6: Final answer
    x = 193,933.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.