Home / 370,985.50-511,960.04-209,837.08

Finding the Fourth Proportional to 370,985.50, 511,960.04 and 209,837.08

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Solution

The fourth proportional to 370,985.50, 511,960.04 and 209,837.08 is: 289,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,985.50 : 511,960.04 = 209,837.08 : x
  2. Step 2: Convert to fraction form
    370,985.50/511,960.04 = 209,837.08/x
  3. Step 3: Cross multiply
    370,985.50x = 511,960.04 × 209,837.08
  4. Step 4: Simplify right side
    370,985.50x = 107,428,199,870.28
  5. Step 5: Solve for x
    x = 107,428,199,870.28/370,985.50
  6. Step 6: Final answer
    x = 289,575.20

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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.