Home / 282,987.54-390,551.42-162,144.86

Finding the Fourth Proportional to 282,987.54, 390,551.42 and 162,144.86

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Solution

The fourth proportional to 282,987.54, 390,551.42 and 162,144.86 is: 223,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,987.54 : 390,551.42 = 162,144.86 : x
  2. Step 2: Convert to fraction form
    282,987.54/390,551.42 = 162,144.86/x
  3. Step 3: Cross multiply
    282,987.54x = 390,551.42 × 162,144.86
  4. Step 4: Simplify right side
    282,987.54x = 63,325,903,771.31
  5. Step 5: Solve for x
    x = 63,325,903,771.31/282,987.54
  6. Step 6: Final answer
    x = 223,776.30

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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.