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Finding the Fourth Proportional to 302,901.98, 418,075.97 and 188,267.20

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Solution

The fourth proportional to 302,901.98, 418,075.97 and 188,267.20 is: 259,853.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,901.98 : 418,075.97 = 188,267.20 : x
  2. Step 2: Convert to fraction form
    302,901.98/418,075.97 = 188,267.20/x
  3. Step 3: Cross multiply
    302,901.98x = 418,075.97 × 188,267.20
  4. Step 4: Simplify right side
    302,901.98x = 78,709,990,272.66
  5. Step 5: Solve for x
    x = 78,709,990,272.66/302,901.98
  6. Step 6: Final answer
    x = 259,853.01

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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.