Home / 345,626.56-477,098.40-270,199.36

Finding the Fourth Proportional to 345,626.56, 477,098.40 and 270,199.36

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Solution

The fourth proportional to 345,626.56, 477,098.40 and 270,199.36 is: 372,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,626.56 : 477,098.40 = 270,199.36 : x
  2. Step 2: Convert to fraction form
    345,626.56/477,098.40 = 270,199.36/x
  3. Step 3: Cross multiply
    345,626.56x = 477,098.40 × 270,199.36
  4. Step 4: Simplify right side
    345,626.56x = 128,911,682,337.02
  5. Step 5: Solve for x
    x = 128,911,682,337.02/345,626.56
  6. Step 6: Final answer
    x = 372,979.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.