Home / 319,554.88-440,985.66-176,315.20

Finding the Fourth Proportional to 319,554.88, 440,985.66 and 176,315.20

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Solution

The fourth proportional to 319,554.88, 440,985.66 and 176,315.20 is: 243,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,554.88 : 440,985.66 = 176,315.20 : x
  2. Step 2: Convert to fraction form
    319,554.88/440,985.66 = 176,315.20/x
  3. Step 3: Cross multiply
    319,554.88x = 440,985.66 × 176,315.20
  4. Step 4: Simplify right side
    319,554.88x = 77,752,474,840.03
  5. Step 5: Solve for x
    x = 77,752,474,840.03/319,554.88
  6. Step 6: Final answer
    x = 243,314.93

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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.