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Finding the Fourth Proportional to 302,695.40, 454,043.10 and 140,573.12

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Solution

The fourth proportional to 302,695.40, 454,043.10 and 140,573.12 is: 210,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,695.40 : 454,043.10 = 140,573.12 : x
  2. Step 2: Convert to fraction form
    302,695.40/454,043.10 = 140,573.12/x
  3. Step 3: Cross multiply
    302,695.40x = 454,043.10 × 140,573.12
  4. Step 4: Simplify right side
    302,695.40x = 63,826,255,181.47
  5. Step 5: Solve for x
    x = 63,826,255,181.47/302,695.40
  6. Step 6: Final answer
    x = 210,859.68

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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.