Home / 253,020.96-349,164-139,844.16

Finding the Fourth Proportional to 253,020.96, 349,164 and 139,844.16

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Solution

The fourth proportional to 253,020.96, 349,164 and 139,844.16 is: 192,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,020.96 : 349,164 = 139,844.16 : x
  2. Step 2: Convert to fraction form
    253,020.96/349,164 = 139,844.16/x
  3. Step 3: Cross multiply
    253,020.96x = 349,164 × 139,844.16
  4. Step 4: Simplify right side
    253,020.96x = 48,828,546,282.24
  5. Step 5: Solve for x
    x = 48,828,546,282.24/253,020.96
  6. Step 6: Final answer
    x = 192,982.22

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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.