Home / 388,293.06-536,009.75-261,042.46

Finding the Fourth Proportional to 388,293.06, 536,009.75 and 261,042.46

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Solution

The fourth proportional to 388,293.06, 536,009.75 and 261,042.46 is: 360,349.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,293.06 : 536,009.75 = 261,042.46 : x
  2. Step 2: Convert to fraction form
    388,293.06/536,009.75 = 261,042.46/x
  3. Step 3: Cross multiply
    388,293.06x = 536,009.75 × 261,042.46
  4. Step 4: Simplify right side
    388,293.06x = 139,921,303,723.99
  5. Step 5: Solve for x
    x = 139,921,303,723.99/388,293.06
  6. Step 6: Final answer
    x = 360,349.74

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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.