Home / 218,743.49-301,875.31-121,947.32

Finding the Fourth Proportional to 218,743.49, 301,875.31 and 121,947.32

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Solution

The fourth proportional to 218,743.49, 301,875.31 and 121,947.32 is: 168,292.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,743.49 : 301,875.31 = 121,947.32 : x
  2. Step 2: Convert to fraction form
    218,743.49/301,875.31 = 121,947.32/x
  3. Step 3: Cross multiply
    218,743.49x = 301,875.31 × 121,947.32
  4. Step 4: Simplify right side
    218,743.49x = 36,812,886,501.81
  5. Step 5: Solve for x
    x = 36,812,886,501.81/218,743.49
  6. Step 6: Final answer
    x = 168,292.49

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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.