Home / 321,237.40-443,307.18-178,006.72

Finding the Fourth Proportional to 321,237.40, 443,307.18 and 178,006.72

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Solution

The fourth proportional to 321,237.40, 443,307.18 and 178,006.72 is: 245,649.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,237.40 : 443,307.18 = 178,006.72 : x
  2. Step 2: Convert to fraction form
    321,237.40/443,307.18 = 178,006.72/x
  3. Step 3: Cross multiply
    321,237.40x = 443,307.18 × 178,006.72
  4. Step 4: Simplify right side
    321,237.40x = 78,911,657,064.25
  5. Step 5: Solve for x
    x = 78,911,657,064.25/321,237.40
  6. Step 6: Final answer
    x = 245,649.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.