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Finding the Fourth Proportional to 253,017.05, 349,424.99 and 218,861.58

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Solution

The fourth proportional to 253,017.05, 349,424.99 and 218,861.58 is: 302,255.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,017.05 : 349,424.99 = 218,861.58 : x
  2. Step 2: Convert to fraction form
    253,017.05/349,424.99 = 218,861.58/x
  3. Step 3: Cross multiply
    253,017.05x = 349,424.99 × 218,861.58
  4. Step 4: Simplify right side
    253,017.05x = 76,475,704,308.58
  5. Step 5: Solve for x
    x = 76,475,704,308.58/253,017.05
  6. Step 6: Final answer
    x = 302,255.15

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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.