Home / 370,923.36-511,868.19-209,772.37

Finding the Fourth Proportional to 370,923.36, 511,868.19 and 209,772.37

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Solution

The fourth proportional to 370,923.36, 511,868.19 and 209,772.37 is: 289,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,923.36 : 511,868.19 = 209,772.37 : x
  2. Step 2: Convert to fraction form
    370,923.36/511,868.19 = 209,772.37/x
  3. Step 3: Cross multiply
    370,923.36x = 511,868.19 × 209,772.37
  4. Step 4: Simplify right side
    370,923.36x = 107,375,803,343.91
  5. Step 5: Solve for x
    x = 107,375,803,343.91/370,923.36
  6. Step 6: Final answer
    x = 289,482.45

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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.