Home / 279,032.22-385,080.21-151,705.08

Finding the Fourth Proportional to 279,032.22, 385,080.21 and 151,705.08

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Solution

The fourth proportional to 279,032.22, 385,080.21 and 151,705.08 is: 209,361.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,032.22 : 385,080.21 = 151,705.08 : x
  2. Step 2: Convert to fraction form
    279,032.22/385,080.21 = 151,705.08/x
  3. Step 3: Cross multiply
    279,032.22x = 385,080.21 × 151,705.08
  4. Step 4: Simplify right side
    279,032.22x = 58,418,624,064.47
  5. Step 5: Solve for x
    x = 58,418,624,064.47/279,032.22
  6. Step 6: Final answer
    x = 209,361.57

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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.