Home / 387,467.22-581,190.07-103,160.21

Finding the Fourth Proportional to 387,467.22, 581,190.07 and 103,160.21

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Solution

The fourth proportional to 387,467.22, 581,190.07 and 103,160.21 is: 154,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,467.22 : 581,190.07 = 103,160.21 : x
  2. Step 2: Convert to fraction form
    387,467.22/581,190.07 = 103,160.21/x
  3. Step 3: Cross multiply
    387,467.22x = 581,190.07 × 103,160.21
  4. Step 4: Simplify right side
    387,467.22x = 59,955,689,671.11
  5. Step 5: Solve for x
    x = 59,955,689,671.11/387,467.22
  6. Step 6: Final answer
    x = 154,737.45

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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.