Home / 304,709.31-420,500.03-168,740.28

Finding the Fourth Proportional to 304,709.31, 420,500.03 and 168,740.28

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Solution

The fourth proportional to 304,709.31, 420,500.03 and 168,740.28 is: 232,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,709.31 : 420,500.03 = 168,740.28 : x
  2. Step 2: Convert to fraction form
    304,709.31/420,500.03 = 168,740.28/x
  3. Step 3: Cross multiply
    304,709.31x = 420,500.03 × 168,740.28
  4. Step 4: Simplify right side
    304,709.31x = 70,955,291,958.51
  5. Step 5: Solve for x
    x = 70,955,291,958.51/304,709.31
  6. Step 6: Final answer
    x = 232,862.24

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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.