Home / 370,742.06-511,604.15-209,587.50

Finding the Fourth Proportional to 370,742.06, 511,604.15 and 209,587.50

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Solution

The fourth proportional to 370,742.06, 511,604.15 and 209,587.50 is: 289,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,742.06 : 511,604.15 = 209,587.50 : x
  2. Step 2: Convert to fraction form
    370,742.06/511,604.15 = 209,587.50/x
  3. Step 3: Cross multiply
    370,742.06x = 511,604.15 × 209,587.50
  4. Step 4: Simplify right side
    370,742.06x = 107,225,832,754.07
  5. Step 5: Solve for x
    x = 107,225,832,754.07/370,742.06
  6. Step 6: Final answer
    x = 289,219.50

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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.