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Finding the Fourth Proportional to 448,568.28, 672,254.64 and 211,973.76

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Solution

The fourth proportional to 448,568.28, 672,254.64 and 211,973.76 is: 317,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,568.28 : 672,254.64 = 211,973.76 : x
  2. Step 2: Convert to fraction form
    448,568.28/672,254.64 = 211,973.76/x
  3. Step 3: Cross multiply
    448,568.28x = 672,254.64 × 211,973.76
  4. Step 4: Simplify right side
    448,568.28x = 142,500,343,718.25
  5. Step 5: Solve for x
    x = 142,500,343,718.25/448,568.28
  6. Step 6: Final answer
    x = 317,678.16

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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.