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Finding the Fourth Proportional to 302,951.47, 418,075.81 and 166,990.63

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Solution

The fourth proportional to 302,951.47, 418,075.81 and 166,990.63 is: 230,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,951.47 : 418,075.81 = 166,990.63 : x
  2. Step 2: Convert to fraction form
    302,951.47/418,075.81 = 166,990.63/x
  3. Step 3: Cross multiply
    302,951.47x = 418,075.81 × 166,990.63
  4. Step 4: Simplify right side
    302,951.47x = 69,814,741,436.99
  5. Step 5: Solve for x
    x = 69,814,741,436.99/302,951.47
  6. Step 6: Final answer
    x = 230,448.60

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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.