Home / 312,215.48-430,857.33-168,975.53

Finding the Fourth Proportional to 312,215.48, 430,857.33 and 168,975.53

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Solution

The fourth proportional to 312,215.48, 430,857.33 and 168,975.53 is: 233,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,215.48 : 430,857.33 = 168,975.53 : x
  2. Step 2: Convert to fraction form
    312,215.48/430,857.33 = 168,975.53/x
  3. Step 3: Cross multiply
    312,215.48x = 430,857.33 × 168,975.53
  4. Step 4: Simplify right side
    312,215.48x = 72,804,345,691.13
  5. Step 5: Solve for x
    x = 72,804,345,691.13/312,215.48
  6. Step 6: Final answer
    x = 233,186.21

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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.