Home / 260,054.20-390,081.30-242,558.20

Finding the Fourth Proportional to 260,054.20, 390,081.30 and 242,558.20

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Solution

The fourth proportional to 260,054.20, 390,081.30 and 242,558.20 is: 363,837.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,054.20 : 390,081.30 = 242,558.20 : x
  2. Step 2: Convert to fraction form
    260,054.20/390,081.30 = 242,558.20/x
  3. Step 3: Cross multiply
    260,054.20x = 390,081.30 × 242,558.20
  4. Step 4: Simplify right side
    260,054.20x = 94,617,417,981.66
  5. Step 5: Solve for x
    x = 94,617,417,981.66/260,054.20
  6. Step 6: Final answer
    x = 363,837.30

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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.