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Finding the Fourth Proportional to 302,608.20, 453,912.30 and 203,075.40

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Solution

The fourth proportional to 302,608.20, 453,912.30 and 203,075.40 is: 304,613.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,608.20 : 453,912.30 = 203,075.40 : x
  2. Step 2: Convert to fraction form
    302,608.20/453,912.30 = 203,075.40/x
  3. Step 3: Cross multiply
    302,608.20x = 453,912.30 × 203,075.40
  4. Step 4: Simplify right side
    302,608.20x = 92,178,421,887.42
  5. Step 5: Solve for x
    x = 92,178,421,887.42/302,608.20
  6. Step 6: Final answer
    x = 304,613.10

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1.5x scale

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.