Home / 210,623.52-315,951.62-70,382.64

Finding the Fourth Proportional to 210,623.52, 315,951.62 and 70,382.64

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Solution

The fourth proportional to 210,623.52, 315,951.62 and 70,382.64 is: 105,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,623.52 : 315,951.62 = 70,382.64 : x
  2. Step 2: Convert to fraction form
    210,623.52/315,951.62 = 70,382.64/x
  3. Step 3: Cross multiply
    210,623.52x = 315,951.62 × 70,382.64
  4. Step 4: Simplify right side
    210,623.52x = 22,237,509,127.88
  5. Step 5: Solve for x
    x = 22,237,509,127.88/210,623.52
  6. Step 6: Final answer
    x = 105,579.42

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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.