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Finding the Fourth Proportional to 225,329.34, 310,955.18 and 123,355.68

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Solution

The fourth proportional to 225,329.34, 310,955.18 and 123,355.68 is: 170,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,329.34 : 310,955.18 = 123,355.68 : x
  2. Step 2: Convert to fraction form
    225,329.34/310,955.18 = 123,355.68/x
  3. Step 3: Cross multiply
    225,329.34x = 310,955.18 × 123,355.68
  4. Step 4: Simplify right side
    225,329.34x = 38,358,088,866.18
  5. Step 5: Solve for x
    x = 38,358,088,866.18/225,329.34
  6. Step 6: Final answer
    x = 170,231.22

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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.