Home / 281,037.60-421,556.40-251,513.10

Finding the Fourth Proportional to 281,037.60, 421,556.40 and 251,513.10

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Solution

The fourth proportional to 281,037.60, 421,556.40 and 251,513.10 is: 377,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037.60 : 421,556.40 = 251,513.10 : x
  2. Step 2: Convert to fraction form
    281,037.60/421,556.40 = 251,513.10/x
  3. Step 3: Cross multiply
    281,037.60x = 421,556.40 × 251,513.10
  4. Step 4: Simplify right side
    281,037.60x = 106,026,956,988.84
  5. Step 5: Solve for x
    x = 106,026,956,988.84/281,037.60
  6. Step 6: Final answer
    x = 377,269.65

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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.