Home / 390,956.23-539,584.12-268,347.85

Finding the Fourth Proportional to 390,956.23, 539,584.12 and 268,347.85

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Solution

The fourth proportional to 390,956.23, 539,584.12 and 268,347.85 is: 370,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,956.23 : 539,584.12 = 268,347.85 : x
  2. Step 2: Convert to fraction form
    390,956.23/539,584.12 = 268,347.85/x
  3. Step 3: Cross multiply
    390,956.23x = 539,584.12 × 268,347.85
  4. Step 4: Simplify right side
    390,956.23x = 144,796,238,496.14
  5. Step 5: Solve for x
    x = 144,796,238,496.14/390,956.23
  6. Step 6: Final answer
    x = 370,364.32

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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.