Home / 438,888.04-658,354.83-139,392.06

Finding the Fourth Proportional to 438,888.04, 658,354.83 and 139,392.06

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Solution

The fourth proportional to 438,888.04, 658,354.83 and 139,392.06 is: 209,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,888.04 : 658,354.83 = 139,392.06 : x
  2. Step 2: Convert to fraction form
    438,888.04/658,354.83 = 139,392.06/x
  3. Step 3: Cross multiply
    438,888.04x = 658,354.83 × 139,392.06
  4. Step 4: Simplify right side
    438,888.04x = 91,769,435,964.65
  5. Step 5: Solve for x
    x = 91,769,435,964.65/438,888.04
  6. Step 6: Final answer
    x = 209,095.32

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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.