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Finding the Fourth Proportional to 210,006.55, 315,009.83 and 177,201.55

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Solution

The fourth proportional to 210,006.55, 315,009.83 and 177,201.55 is: 265,802.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,006.55 : 315,009.83 = 177,201.55 : x
  2. Step 2: Convert to fraction form
    210,006.55/315,009.83 = 177,201.55/x
  3. Step 3: Cross multiply
    210,006.55x = 315,009.83 × 177,201.55
  4. Step 4: Simplify right side
    210,006.55x = 55,820,230,141.24
  5. Step 5: Solve for x
    x = 55,820,230,141.24/210,006.55
  6. Step 6: Final answer
    x = 265,802.33

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1.5x scale

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.