Home / 282,568.92-389,931.81-155,241.78

Finding the Fourth Proportional to 282,568.92, 389,931.81 and 155,241.78

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Solution

The fourth proportional to 282,568.92, 389,931.81 and 155,241.78 is: 214,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,568.92 : 389,931.81 = 155,241.78 : x
  2. Step 2: Convert to fraction form
    282,568.92/389,931.81 = 155,241.78/x
  3. Step 3: Cross multiply
    282,568.92x = 389,931.81 × 155,241.78
  4. Step 4: Simplify right side
    282,568.92x = 60,533,708,263.02
  5. Step 5: Solve for x
    x = 60,533,708,263.02/282,568.92
  6. Step 6: Final answer
    x = 214,226.35

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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.