Home / 445,838.08-668,860.80-130,299.52

Finding the Fourth Proportional to 445,838.08, 668,860.80 and 130,299.52

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Solution

The fourth proportional to 445,838.08, 668,860.80 and 130,299.52 is: 195,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,838.08 : 668,860.80 = 130,299.52 : x
  2. Step 2: Convert to fraction form
    445,838.08/668,860.80 = 130,299.52/x
  3. Step 3: Cross multiply
    445,838.08x = 668,860.80 × 130,299.52
  4. Step 4: Simplify right side
    445,838.08x = 87,152,241,186.82
  5. Step 5: Solve for x
    x = 87,152,241,186.82/445,838.08
  6. Step 6: Final answer
    x = 195,479.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.