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Finding the Fourth Proportional to 507,388.88, 761,082.80 and 207,870.00

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Solution

The fourth proportional to 507,388.88, 761,082.80 and 207,870.00 is: 311,804.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,388.88 : 761,082.80 = 207,870.00 : x
  2. Step 2: Convert to fraction form
    507,388.88/761,082.80 = 207,870.00/x
  3. Step 3: Cross multiply
    507,388.88x = 761,082.80 × 207,870.00
  4. Step 4: Simplify right side
    507,388.88x = 158,206,283,064.07
  5. Step 5: Solve for x
    x = 158,206,283,064.07/507,388.88
  6. Step 6: Final answer
    x = 311,804.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.