Home / 280,420.84-386,739.30-249,835.24

Finding the Fourth Proportional to 280,420.84, 386,739.30 and 249,835.24

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Solution

The fourth proportional to 280,420.84, 386,739.30 and 249,835.24 is: 344,557.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,420.84 : 386,739.30 = 249,835.24 : x
  2. Step 2: Convert to fraction form
    280,420.84/386,739.30 = 249,835.24/x
  3. Step 3: Cross multiply
    280,420.84x = 386,739.30 × 249,835.24
  4. Step 4: Simplify right side
    280,420.84x = 96,621,105,832.93
  5. Step 5: Solve for x
    x = 96,621,105,832.93/280,420.84
  6. Step 6: Final answer
    x = 344,557.51

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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.