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Finding the Fourth Proportional to 290,589.88, 401,061.60 and 242,114.92

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Solution

The fourth proportional to 290,589.88, 401,061.60 and 242,114.92 is: 334,158.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,589.88 : 401,061.60 = 242,114.92 : x
  2. Step 2: Convert to fraction form
    290,589.88/401,061.60 = 242,114.92/x
  3. Step 3: Cross multiply
    290,589.88x = 401,061.60 × 242,114.92
  4. Step 4: Simplify right side
    290,589.88x = 97,102,997,199.07
  5. Step 5: Solve for x
    x = 97,102,997,199.07/290,589.88
  6. Step 6: Final answer
    x = 334,158.22

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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.