Home / 319,211.68-440,509.22-175,971.72

Finding the Fourth Proportional to 319,211.68, 440,509.22 and 175,971.72

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Solution

The fourth proportional to 319,211.68, 440,509.22 and 175,971.72 is: 242,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,211.68 : 440,509.22 = 175,971.72 : x
  2. Step 2: Convert to fraction form
    319,211.68/440,509.22 = 175,971.72/x
  3. Step 3: Cross multiply
    319,211.68x = 440,509.22 × 175,971.72
  4. Step 4: Simplify right side
    319,211.68x = 77,517,165,559.19
  5. Step 5: Solve for x
    x = 77,517,165,559.19/319,211.68
  6. Step 6: Final answer
    x = 242,839.38

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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.