Home / 319,066.65-440,235.09-210,159.54

Finding the Fourth Proportional to 319,066.65, 440,235.09 and 210,159.54

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Solution

The fourth proportional to 319,066.65, 440,235.09 and 210,159.54 is: 289,969.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,066.65 : 440,235.09 = 210,159.54 : x
  2. Step 2: Convert to fraction form
    319,066.65/440,235.09 = 210,159.54/x
  3. Step 3: Cross multiply
    319,066.65x = 440,235.09 × 210,159.54
  4. Step 4: Simplify right side
    319,066.65x = 92,519,604,006.26
  5. Step 5: Solve for x
    x = 92,519,604,006.26/319,066.65
  6. Step 6: Final answer
    x = 289,969.52

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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.