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Finding the Fourth Proportional to 315,270.03, 435,083.14 and 172,037.93

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Solution

The fourth proportional to 315,270.03, 435,083.14 and 172,037.93 is: 237,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,270.03 : 435,083.14 = 172,037.93 : x
  2. Step 2: Convert to fraction form
    315,270.03/435,083.14 = 172,037.93/x
  3. Step 3: Cross multiply
    315,270.03x = 435,083.14 × 172,037.93
  4. Step 4: Simplify right side
    315,270.03x = 74,850,802,783.50
  5. Step 5: Solve for x
    x = 74,850,802,783.50/315,270.03
  6. Step 6: Final answer
    x = 237,418.07

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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.