Home / 320,426.49-480,262.37-130,768.50

Finding the Fourth Proportional to 320,426.49, 480,262.37 and 130,768.50

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Solution

The fourth proportional to 320,426.49, 480,262.37 and 130,768.50 is: 195,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,426.49 : 480,262.37 = 130,768.50 : x
  2. Step 2: Convert to fraction form
    320,426.49/480,262.37 = 130,768.50/x
  3. Step 3: Cross multiply
    320,426.49x = 480,262.37 × 130,768.50
  4. Step 4: Simplify right side
    320,426.49x = 62,803,189,077.50
  5. Step 5: Solve for x
    x = 62,803,189,077.50/320,426.49
  6. Step 6: Final answer
    x = 195,998.74

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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.