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Finding the Fourth Proportional to 448,256.79, 672,483.56 and 132,738.21

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Solution

The fourth proportional to 448,256.79, 672,483.56 and 132,738.21 is: 199,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,256.79 : 672,483.56 = 132,738.21 : x
  2. Step 2: Convert to fraction form
    448,256.79/672,483.56 = 132,738.21/x
  3. Step 3: Cross multiply
    448,256.79x = 672,483.56 × 132,738.21
  4. Step 4: Simplify right side
    448,256.79x = 89,264,263,345.14
  5. Step 5: Solve for x
    x = 89,264,263,345.14/448,256.79
  6. Step 6: Final answer
    x = 199,136.44

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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.