Home / 319,391.37-440,780.27-176,151.69

Finding the Fourth Proportional to 319,391.37, 440,780.27 and 176,151.69

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Solution

The fourth proportional to 319,391.37, 440,780.27 and 176,151.69 is: 243,100.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,391.37 : 440,780.27 = 176,151.69 : x
  2. Step 2: Convert to fraction form
    319,391.37/440,780.27 = 176,151.69/x
  3. Step 3: Cross multiply
    319,391.37x = 440,780.27 × 176,151.69
  4. Step 4: Simplify right side
    319,391.37x = 77,644,188,598.40
  5. Step 5: Solve for x
    x = 77,644,188,598.40/319,391.37
  6. Step 6: Final answer
    x = 243,100.46

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1.5x scale

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.