Home / 387,808.02-581,721.75-107,327.70

Finding the Fourth Proportional to 387,808.02, 581,721.75 and 107,327.70

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Solution

The fourth proportional to 387,808.02, 581,721.75 and 107,327.70 is: 160,994.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,808.02 : 581,721.75 = 107,327.70 : x
  2. Step 2: Convert to fraction form
    387,808.02/581,721.75 = 107,327.70/x
  3. Step 3: Cross multiply
    387,808.02x = 581,721.75 × 107,327.70
  4. Step 4: Simplify right side
    387,808.02x = 62,434,857,467.48
  5. Step 5: Solve for x
    x = 62,434,857,467.48/387,808.02
  6. Step 6: Final answer
    x = 160,994.24

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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.