Home / 282,655.26-390,066.24-155,330.52

Finding the Fourth Proportional to 282,655.26, 390,066.24 and 155,330.52

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Solution

The fourth proportional to 282,655.26, 390,066.24 and 155,330.52 is: 214,357.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,655.26 : 390,066.24 = 155,330.52 : x
  2. Step 2: Convert to fraction form
    282,655.26/390,066.24 = 155,330.52/x
  3. Step 3: Cross multiply
    282,655.26x = 390,066.24 × 155,330.52
  4. Step 4: Simplify right side
    282,655.26x = 60,589,191,893.64
  5. Step 5: Solve for x
    x = 60,589,191,893.64/282,655.26
  6. Step 6: Final answer
    x = 214,357.21

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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.