Home / 282,627.43-390,021.35-155,300.29

Finding the Fourth Proportional to 282,627.43, 390,021.35 and 155,300.29

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Solution

The fourth proportional to 282,627.43, 390,021.35 and 155,300.29 is: 214,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,627.43 : 390,021.35 = 155,300.29 : x
  2. Step 2: Convert to fraction form
    282,627.43/390,021.35 = 155,300.29/x
  3. Step 3: Cross multiply
    282,627.43x = 390,021.35 × 155,300.29
  4. Step 4: Simplify right side
    282,627.43x = 60,570,427,009.64
  5. Step 5: Solve for x
    x = 60,570,427,009.64/282,627.43
  6. Step 6: Final answer
    x = 214,311.92

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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.