Home / 319,256.64-440,577.12-176,021.76

Finding the Fourth Proportional to 319,256.64, 440,577.12 and 176,021.76

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Solution

The fourth proportional to 319,256.64, 440,577.12 and 176,021.76 is: 242,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,256.64 : 440,577.12 = 176,021.76 : x
  2. Step 2: Convert to fraction form
    319,256.64/440,577.12 = 176,021.76/x
  3. Step 3: Cross multiply
    319,256.64x = 440,577.12 × 176,021.76
  4. Step 4: Simplify right side
    319,256.64x = 77,551,160,078.13
  5. Step 5: Solve for x
    x = 77,551,160,078.13/319,256.64
  6. Step 6: Final answer
    x = 242,911.66

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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.