Home / 387,370.48-581,089.18-106,887.72

Finding the Fourth Proportional to 387,370.48, 581,089.18 and 106,887.72

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Solution

The fourth proportional to 387,370.48, 581,089.18 and 106,887.72 is: 160,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,370.48 : 581,089.18 = 106,887.72 : x
  2. Step 2: Convert to fraction form
    387,370.48/581,089.18 = 106,887.72/x
  3. Step 3: Cross multiply
    387,370.48x = 581,089.18 × 106,887.72
  4. Step 4: Simplify right side
    387,370.48x = 62,111,297,566.87
  5. Step 5: Solve for x
    x = 62,111,297,566.87/387,370.48
  6. Step 6: Final answer
    x = 160,340.81

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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.