Home / 282,433.61-389,757.90-155,109.21

Finding the Fourth Proportional to 282,433.61, 389,757.90 and 155,109.21

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Solution

The fourth proportional to 282,433.61, 389,757.90 and 155,109.21 is: 214,050.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,433.61 : 389,757.90 = 155,109.21 : x
  2. Step 2: Convert to fraction form
    282,433.61/389,757.90 = 155,109.21/x
  3. Step 3: Cross multiply
    282,433.61x = 389,757.90 × 155,109.21
  4. Step 4: Simplify right side
    282,433.61x = 60,455,039,960.26
  5. Step 5: Solve for x
    x = 60,455,039,960.26/282,433.61
  6. Step 6: Final answer
    x = 214,050.45

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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.