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Finding the Fourth Proportional to 302,713.70, 454,070.55 and 279,968.90

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Solution

The fourth proportional to 302,713.70, 454,070.55 and 279,968.90 is: 419,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,713.70 : 454,070.55 = 279,968.90 : x
  2. Step 2: Convert to fraction form
    302,713.70/454,070.55 = 279,968.90/x
  3. Step 3: Cross multiply
    302,713.70x = 454,070.55 × 279,968.90
  4. Step 4: Simplify right side
    302,713.70x = 127,125,632,405.90
  5. Step 5: Solve for x
    x = 127,125,632,405.90/302,713.70
  6. Step 6: Final answer
    x = 419,953.35

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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.