Home / 418,243.80-626,490.90-231,036.60

Finding the Fourth Proportional to 418,243.80, 626,490.90 and 231,036.60

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Solution

The fourth proportional to 418,243.80, 626,490.90 and 231,036.60 is: 346,071.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,243.80 : 626,490.90 = 231,036.60 : x
  2. Step 2: Convert to fraction form
    418,243.80/626,490.90 = 231,036.60/x
  3. Step 3: Cross multiply
    418,243.80x = 626,490.90 × 231,036.60
  4. Step 4: Simplify right side
    418,243.80x = 144,742,327,466.94
  5. Step 5: Solve for x
    x = 144,742,327,466.94/418,243.80
  6. Step 6: Final answer
    x = 346,071.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.