Home / 304,538.31-420,256.78-168,572.23

Finding the Fourth Proportional to 304,538.31, 420,256.78 and 168,572.23

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Solution

The fourth proportional to 304,538.31, 420,256.78 and 168,572.23 is: 232,626.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,538.31 : 420,256.78 = 168,572.23 : x
  2. Step 2: Convert to fraction form
    304,538.31/420,256.78 = 168,572.23/x
  3. Step 3: Cross multiply
    304,538.31x = 420,256.78 × 168,572.23
  4. Step 4: Simplify right side
    304,538.31x = 70,843,622,577.22
  5. Step 5: Solve for x
    x = 70,843,622,577.22/304,538.31
  6. Step 6: Final answer
    x = 232,626.31

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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.