Home / 281,192.40-421,788.60-181,465.20

Finding the Fourth Proportional to 281,192.40, 421,788.60 and 181,465.20

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Solution

The fourth proportional to 281,192.40, 421,788.60 and 181,465.20 is: 272,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,192.40 : 421,788.60 = 181,465.20 : x
  2. Step 2: Convert to fraction form
    281,192.40/421,788.60 = 181,465.20/x
  3. Step 3: Cross multiply
    281,192.40x = 421,788.60 × 181,465.20
  4. Step 4: Simplify right side
    281,192.40x = 76,539,952,656.72
  5. Step 5: Solve for x
    x = 76,539,952,656.72/281,192.40
  6. Step 6: Final answer
    x = 272,197.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.