Home / 210,629.80-315,944.70-147,644.20

Finding the Fourth Proportional to 210,629.80, 315,944.70 and 147,644.20

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Solution

The fourth proportional to 210,629.80, 315,944.70 and 147,644.20 is: 221,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,629.80 : 315,944.70 = 147,644.20 : x
  2. Step 2: Convert to fraction form
    210,629.80/315,944.70 = 147,644.20/x
  3. Step 3: Cross multiply
    210,629.80x = 315,944.70 × 147,644.20
  4. Step 4: Simplify right side
    210,629.80x = 46,647,402,475.74
  5. Step 5: Solve for x
    x = 46,647,402,475.74/210,629.80
  6. Step 6: Final answer
    x = 221,466.30

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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.