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Finding the Fourth Proportional to 316,955.37, 475,357.72 and 127,416.28

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Solution

The fourth proportional to 316,955.37, 475,357.72 and 127,416.28 is: 191,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,955.37 : 475,357.72 = 127,416.28 : x
  2. Step 2: Convert to fraction form
    316,955.37/475,357.72 = 127,416.28/x
  3. Step 3: Cross multiply
    316,955.37x = 475,357.72 × 127,416.28
  4. Step 4: Simplify right side
    316,955.37x = 60,568,312,351.68
  5. Step 5: Solve for x
    x = 60,568,312,351.68/316,955.37
  6. Step 6: Final answer
    x = 191,094.14

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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.