Home / 282,446.55-389,779.31-155,122.13

Finding the Fourth Proportional to 282,446.55, 389,779.31 and 155,122.13

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Solution

The fourth proportional to 282,446.55, 389,779.31 and 155,122.13 is: 214,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,446.55 : 389,779.31 = 155,122.13 : x
  2. Step 2: Convert to fraction form
    282,446.55/389,779.31 = 155,122.13/x
  3. Step 3: Cross multiply
    282,446.55x = 389,779.31 × 155,122.13
  4. Step 4: Simplify right side
    282,446.55x = 60,463,396,797.13
  5. Step 5: Solve for x
    x = 60,463,396,797.13/282,446.55
  6. Step 6: Final answer
    x = 214,070.23

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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.