Home / 518,727.24-778,158.90-203,143.14

Finding the Fourth Proportional to 518,727.24, 778,158.90 and 203,143.14

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Solution

The fourth proportional to 518,727.24, 778,158.90 and 203,143.14 is: 304,741.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,727.24 : 778,158.90 = 203,143.14 : x
  2. Step 2: Convert to fraction form
    518,727.24/778,158.90 = 203,143.14/x
  3. Step 3: Cross multiply
    518,727.24x = 778,158.90 × 203,143.14
  4. Step 4: Simplify right side
    518,727.24x = 158,077,642,364.95
  5. Step 5: Solve for x
    x = 158,077,642,364.95/518,727.24
  6. Step 6: Final answer
    x = 304,741.36

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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.