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Finding the Fourth Proportional to 340,870.35, 510,561.93 and 281,034.03

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Solution

The fourth proportional to 340,870.35, 510,561.93 and 281,034.03 is: 420,937.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,870.35 : 510,561.93 = 281,034.03 : x
  2. Step 2: Convert to fraction form
    340,870.35/510,561.93 = 281,034.03/x
  3. Step 3: Cross multiply
    340,870.35x = 510,561.93 × 281,034.03
  4. Step 4: Simplify right side
    340,870.35x = 143,485,276,752.48
  5. Step 5: Solve for x
    x = 143,485,276,752.48/340,870.35
  6. Step 6: Final answer
    x = 420,937.98

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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.