Home / 281,838.25-389,140.91-181,411.21

Finding the Fourth Proportional to 281,838.25, 389,140.91 and 181,411.21

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Solution

The fourth proportional to 281,838.25, 389,140.91 and 181,411.21 is: 250,478.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,838.25 : 389,140.91 = 181,411.21 : x
  2. Step 2: Convert to fraction form
    281,838.25/389,140.91 = 181,411.21/x
  3. Step 3: Cross multiply
    281,838.25x = 389,140.91 × 181,411.21
  4. Step 4: Simplify right side
    281,838.25x = 70,594,523,343.60
  5. Step 5: Solve for x
    x = 70,594,523,343.60/281,838.25
  6. Step 6: Final answer
    x = 250,478.86

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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.