Home / 395,428.23-545,688.21-214,136.01

Finding the Fourth Proportional to 395,428.23, 545,688.21 and 214,136.01

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Solution

The fourth proportional to 395,428.23, 545,688.21 and 214,136.01 is: 295,506.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,428.23 : 545,688.21 = 214,136.01 : x
  2. Step 2: Convert to fraction form
    395,428.23/545,688.21 = 214,136.01/x
  3. Step 3: Cross multiply
    395,428.23x = 545,688.21 × 214,136.01
  4. Step 4: Simplify right side
    395,428.23x = 116,851,495,993.44
  5. Step 5: Solve for x
    x = 116,851,495,993.44/395,428.23
  6. Step 6: Final answer
    x = 295,506.21

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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.