Home / 346,049.30-518,089.80-266,661.20

Finding the Fourth Proportional to 346,049.30, 518,089.80 and 266,661.20

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Solution

The fourth proportional to 346,049.30, 518,089.80 and 266,661.20 is: 399,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,049.30 : 518,089.80 = 266,661.20 : x
  2. Step 2: Convert to fraction form
    346,049.30/518,089.80 = 266,661.20/x
  3. Step 3: Cross multiply
    346,049.30x = 518,089.80 × 266,661.20
  4. Step 4: Simplify right side
    346,049.30x = 138,154,447,775.76
  5. Step 5: Solve for x
    x = 138,154,447,775.76/346,049.30
  6. Step 6: Final answer
    x = 399,233.43

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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.