Home / 346,215.20-519,322.80-212,662.40

Finding the Fourth Proportional to 346,215.20, 519,322.80 and 212,662.40

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Solution

The fourth proportional to 346,215.20, 519,322.80 and 212,662.40 is: 318,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,215.20 : 519,322.80 = 212,662.40 : x
  2. Step 2: Convert to fraction form
    346,215.20/519,322.80 = 212,662.40/x
  3. Step 3: Cross multiply
    346,215.20x = 519,322.80 × 212,662.40
  4. Step 4: Simplify right side
    346,215.20x = 110,440,433,022.72
  5. Step 5: Solve for x
    x = 110,440,433,022.72/346,215.20
  6. Step 6: Final answer
    x = 318,993.60

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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.