Home / 346,043.20-519,064.80-212,490.40

Finding the Fourth Proportional to 346,043.20, 519,064.80 and 212,490.40

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Solution

The fourth proportional to 346,043.20, 519,064.80 and 212,490.40 is: 318,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,043.20 : 519,064.80 = 212,490.40 : x
  2. Step 2: Convert to fraction form
    346,043.20/519,064.80 = 212,490.40/x
  3. Step 3: Cross multiply
    346,043.20x = 519,064.80 × 212,490.40
  4. Step 4: Simplify right side
    346,043.20x = 110,296,286,977.92
  5. Step 5: Solve for x
    x = 110,296,286,977.92/346,043.20
  6. Step 6: Final answer
    x = 318,735.60

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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.