Home / 280,161.80-386,622.74-152,837.37

Finding the Fourth Proportional to 280,161.80, 386,622.74 and 152,837.37

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Solution

The fourth proportional to 280,161.80, 386,622.74 and 152,837.37 is: 210,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,161.80 : 386,622.74 = 152,837.37 : x
  2. Step 2: Convert to fraction form
    280,161.80/386,622.74 = 152,837.37/x
  3. Step 3: Cross multiply
    280,161.80x = 386,622.74 × 152,837.37
  4. Step 4: Simplify right side
    280,161.80x = 59,090,401,999.61
  5. Step 5: Solve for x
    x = 59,090,401,999.61/280,161.80
  6. Step 6: Final answer
    x = 210,915.27

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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.