Home / 304,830.03-420,870.84-190,283.07

Finding the Fourth Proportional to 304,830.03, 420,870.84 and 190,283.07

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Solution

The fourth proportional to 304,830.03, 420,870.84 and 190,283.07 is: 262,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,830.03 : 420,870.84 = 190,283.07 : x
  2. Step 2: Convert to fraction form
    304,830.03/420,870.84 = 190,283.07/x
  3. Step 3: Cross multiply
    304,830.03x = 420,870.84 × 190,283.07
  4. Step 4: Simplify right side
    304,830.03x = 80,084,595,508.68
  5. Step 5: Solve for x
    x = 80,084,595,508.68/304,830.03
  6. Step 6: Final answer
    x = 262,718.85

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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.