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Finding the Fourth Proportional to 302,512.30, 453,768.45 and 288,734.20

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Solution

The fourth proportional to 302,512.30, 453,768.45 and 288,734.20 is: 433,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,512.30 : 453,768.45 = 288,734.20 : x
  2. Step 2: Convert to fraction form
    302,512.30/453,768.45 = 288,734.20/x
  3. Step 3: Cross multiply
    302,512.30x = 453,768.45 × 288,734.20
  4. Step 4: Simplify right side
    302,512.30x = 131,018,470,395.99
  5. Step 5: Solve for x
    x = 131,018,470,395.99/302,512.30
  6. Step 6: Final answer
    x = 433,101.30

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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.