Home / 304,782.12-420,623.02-168,828.72

Finding the Fourth Proportional to 304,782.12, 420,623.02 and 168,828.72

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Solution

The fourth proportional to 304,782.12, 420,623.02 and 168,828.72 is: 232,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,782.12 : 420,623.02 = 168,828.72 : x
  2. Step 2: Convert to fraction form
    304,782.12/420,623.02 = 168,828.72/x
  3. Step 3: Cross multiply
    304,782.12x = 420,623.02 × 168,828.72
  4. Step 4: Simplify right side
    304,782.12x = 71,013,246,069.13
  5. Step 5: Solve for x
    x = 71,013,246,069.13/304,782.12
  6. Step 6: Final answer
    x = 232,996.76

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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.