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Finding the Fourth Proportional to 346,003.60, 519,005.40 and 212,450.80

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Solution

The fourth proportional to 346,003.60, 519,005.40 and 212,450.80 is: 318,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,003.60 : 519,005.40 = 212,450.80 : x
  2. Step 2: Convert to fraction form
    346,003.60/519,005.40 = 212,450.80/x
  3. Step 3: Cross multiply
    346,003.60x = 519,005.40 × 212,450.80
  4. Step 4: Simplify right side
    346,003.60x = 110,263,112,434.32
  5. Step 5: Solve for x
    x = 110,263,112,434.32/346,003.60
  6. Step 6: Final answer
    x = 318,676.20

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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.