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Finding the Fourth Proportional to 225,430.71, 311,094.41 and 124,828.71

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Solution

The fourth proportional to 225,430.71, 311,094.41 and 124,828.71 is: 172,263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,430.71 : 311,094.41 = 124,828.71 : x
  2. Step 2: Convert to fraction form
    225,430.71/311,094.41 = 124,828.71/x
  3. Step 3: Cross multiply
    225,430.71x = 311,094.41 × 124,828.71
  4. Step 4: Simplify right side
    225,430.71x = 38,833,513,264.37
  5. Step 5: Solve for x
    x = 38,833,513,264.37/225,430.71
  6. Step 6: Final answer
    x = 172,263.63

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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.