Home / 315,208.38-434,987.07-171,968.37

Finding the Fourth Proportional to 315,208.38, 434,987.07 and 171,968.37

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Solution

The fourth proportional to 315,208.38, 434,987.07 and 171,968.37 is: 237,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,208.38 : 434,987.07 = 171,968.37 : x
  2. Step 2: Convert to fraction form
    315,208.38/434,987.07 = 171,968.37/x
  3. Step 3: Cross multiply
    315,208.38x = 434,987.07 × 171,968.37
  4. Step 4: Simplify right side
    315,208.38x = 74,804,017,398.98
  5. Step 5: Solve for x
    x = 74,804,017,398.98/315,208.38
  6. Step 6: Final answer
    x = 237,316.08

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1.5x scale

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.