Home / 212,683.18-293,305.51-155,231.48

Finding the Fourth Proportional to 212,683.18, 293,305.51 and 155,231.48

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Solution

The fourth proportional to 212,683.18, 293,305.51 and 155,231.48 is: 214,075.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,683.18 : 293,305.51 = 155,231.48 : x
  2. Step 2: Convert to fraction form
    212,683.18/293,305.51 = 155,231.48/x
  3. Step 3: Cross multiply
    212,683.18x = 293,305.51 × 155,231.48
  4. Step 4: Simplify right side
    212,683.18x = 45,530,250,185.81
  5. Step 5: Solve for x
    x = 45,530,250,185.81/212,683.18
  6. Step 6: Final answer
    x = 214,075.47

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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.