Home / 319,108.32-440,444.53-198,340.82

Finding the Fourth Proportional to 319,108.32, 440,444.53 and 198,340.82

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Solution

The fourth proportional to 319,108.32, 440,444.53 and 198,340.82 is: 273,756.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,108.32 : 440,444.53 = 198,340.82 : x
  2. Step 2: Convert to fraction form
    319,108.32/440,444.53 = 198,340.82/x
  3. Step 3: Cross multiply
    319,108.32x = 440,444.53 × 198,340.82
  4. Step 4: Simplify right side
    319,108.32x = 87,358,129,244.71
  5. Step 5: Solve for x
    x = 87,358,129,244.71/319,108.32
  6. Step 6: Final answer
    x = 273,756.98

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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.