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Finding the Fourth Proportional to 290,539.99, 400,992.77 and 242,065.04

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Solution

The fourth proportional to 290,539.99, 400,992.77 and 242,065.04 is: 334,089.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,539.99 : 400,992.77 = 242,065.04 : x
  2. Step 2: Convert to fraction form
    290,539.99/400,992.77 = 242,065.04/x
  3. Step 3: Cross multiply
    290,539.99x = 400,992.77 × 242,065.04
  4. Step 4: Simplify right side
    290,539.99x = 97,066,332,214.82
  5. Step 5: Solve for x
    x = 97,066,332,214.82/290,539.99
  6. Step 6: Final answer
    x = 334,089.41

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1.5x scale

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.