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Finding the Fourth Proportional to 302,445.80, 453,668.70 and 297,780.20

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Solution

The fourth proportional to 302,445.80, 453,668.70 and 297,780.20 is: 446,670.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,445.80 : 453,668.70 = 297,780.20 : x
  2. Step 2: Convert to fraction form
    302,445.80/453,668.70 = 297,780.20/x
  3. Step 3: Cross multiply
    302,445.80x = 453,668.70 × 297,780.20
  4. Step 4: Simplify right side
    302,445.80x = 135,093,556,219.74
  5. Step 5: Solve for x
    x = 135,093,556,219.74/302,445.80
  6. Step 6: Final answer
    x = 446,670.30

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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.