Home / 370,968.82-511,948.56-209,820.72

Finding the Fourth Proportional to 370,968.82, 511,948.56 and 209,820.72

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Solution

The fourth proportional to 370,968.82, 511,948.56 and 209,820.72 is: 289,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,968.82 : 511,948.56 = 209,820.72 : x
  2. Step 2: Convert to fraction form
    370,968.82/511,948.56 = 209,820.72/x
  3. Step 3: Cross multiply
    370,968.82x = 511,948.56 × 209,820.72
  4. Step 4: Simplify right side
    370,968.82x = 107,417,415,462.16
  5. Step 5: Solve for x
    x = 107,417,415,462.16/370,968.82
  6. Step 6: Final answer
    x = 289,559.15

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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.