Home / 313,485.18-432,741.90-211,648.51

Finding the Fourth Proportional to 313,485.18, 432,741.90 and 211,648.51

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Solution

The fourth proportional to 313,485.18, 432,741.90 and 211,648.51 is: 292,164.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,485.18 : 432,741.90 = 211,648.51 : x
  2. Step 2: Convert to fraction form
    313,485.18/432,741.90 = 211,648.51/x
  3. Step 3: Cross multiply
    313,485.18x = 432,741.90 × 211,648.51
  4. Step 4: Simplify right side
    313,485.18x = 91,589,178,349.57
  5. Step 5: Solve for x
    x = 91,589,178,349.57/313,485.18
  6. Step 6: Final answer
    x = 292,164.30

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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.