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Finding the Fourth Proportional to 448,341.67, 618,688.96 and 254,724

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Solution

The fourth proportional to 448,341.67, 618,688.96 and 254,724 is: 351,506.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,341.67 : 618,688.96 = 254,724 : x
  2. Step 2: Convert to fraction form
    448,341.67/618,688.96 = 254,724/x
  3. Step 3: Cross multiply
    448,341.67x = 618,688.96 × 254,724
  4. Step 4: Simplify right side
    448,341.67x = 157,594,926,647.04
  5. Step 5: Solve for x
    x = 157,594,926,647.04/448,341.67
  6. Step 6: Final answer
    x = 351,506.31

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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.