Home / 319,623.15-479,382.36-130,075.86

Finding the Fourth Proportional to 319,623.15, 479,382.36 and 130,075.86

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Solution

The fourth proportional to 319,623.15, 479,382.36 and 130,075.86 is: 195,092.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,623.15 : 479,382.36 = 130,075.86 : x
  2. Step 2: Convert to fraction form
    319,623.15/479,382.36 = 130,075.86/x
  3. Step 3: Cross multiply
    319,623.15x = 479,382.36 × 130,075.86
  4. Step 4: Simplify right side
    319,623.15x = 62,356,072,745.83
  5. Step 5: Solve for x
    x = 62,356,072,745.83/319,623.15
  6. Step 6: Final answer
    x = 195,092.48

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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.