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Finding the Fourth Proportional to 346,380.40, 519,570.60 and 306,722.80

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Solution

The fourth proportional to 346,380.40, 519,570.60 and 306,722.80 is: 460,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,380.40 : 519,570.60 = 306,722.80 : x
  2. Step 2: Convert to fraction form
    346,380.40/519,570.60 = 306,722.80/x
  3. Step 3: Cross multiply
    346,380.40x = 519,570.60 × 306,722.80
  4. Step 4: Simplify right side
    346,380.40x = 159,364,149,229.68
  5. Step 5: Solve for x
    x = 159,364,149,229.68/346,380.40
  6. Step 6: Final answer
    x = 460,084.20

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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.