Home / 370,382.16-511,123.59-209,236.98

Finding the Fourth Proportional to 370,382.16, 511,123.59 and 209,236.98

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Solution

The fourth proportional to 370,382.16, 511,123.59 and 209,236.98 is: 288,744.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,382.16 : 511,123.59 = 209,236.98 : x
  2. Step 2: Convert to fraction form
    370,382.16/511,123.59 = 209,236.98/x
  3. Step 3: Cross multiply
    370,382.16x = 511,123.59 × 209,236.98
  4. Step 4: Simplify right side
    370,382.16x = 106,945,956,378.36
  5. Step 5: Solve for x
    x = 106,945,956,378.36/370,382.16
  6. Step 6: Final answer
    x = 288,744.89

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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.