Home / 370,330.94-511,088.16-209,215.56

Finding the Fourth Proportional to 370,330.94, 511,088.16 and 209,215.56

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Solution

The fourth proportional to 370,330.94, 511,088.16 and 209,215.56 is: 288,735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,330.94 : 511,088.16 = 209,215.56 : x
  2. Step 2: Convert to fraction form
    370,330.94/511,088.16 = 209,215.56/x
  3. Step 3: Cross multiply
    370,330.94x = 511,088.16 × 209,215.56
  4. Step 4: Simplify right side
    370,330.94x = 106,927,595,603.77
  5. Step 5: Solve for x
    x = 106,927,595,603.77/370,330.94
  6. Step 6: Final answer
    x = 288,735.25

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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.