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Finding the Fourth Proportional to 302,675.70, 453,904.20 and 122,685.60

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Solution

The fourth proportional to 302,675.70, 453,904.20 and 122,685.60 is: 183,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,675.70 : 453,904.20 = 122,685.60 : x
  2. Step 2: Convert to fraction form
    302,675.70/453,904.20 = 122,685.60/x
  3. Step 3: Cross multiply
    302,675.70x = 453,904.20 × 122,685.60
  4. Step 4: Simplify right side
    302,675.70x = 55,687,509,119.52
  5. Step 5: Solve for x
    x = 55,687,509,119.52/302,675.70
  6. Step 6: Final answer
    x = 183,984.08

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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.