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Finding the Fourth Proportional to 282,444.55, 389,776.55 and 155,120.13

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Solution

The fourth proportional to 282,444.55, 389,776.55 and 155,120.13 is: 214,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,444.55 : 389,776.55 = 155,120.13 : x
  2. Step 2: Convert to fraction form
    282,444.55/389,776.55 = 155,120.13/x
  3. Step 3: Cross multiply
    282,444.55x = 389,776.55 × 155,120.13
  4. Step 4: Simplify right side
    282,444.55x = 60,462,188,331.35
  5. Step 5: Solve for x
    x = 60,462,188,331.35/282,444.55
  6. Step 6: Final answer
    x = 214,067.47

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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.