Home / 289,788.48-399,904.56-162,461.40

Finding the Fourth Proportional to 289,788.48, 399,904.56 and 162,461.40

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Solution

The fourth proportional to 289,788.48, 399,904.56 and 162,461.40 is: 224,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,788.48 : 399,904.56 = 162,461.40 : x
  2. Step 2: Convert to fraction form
    289,788.48/399,904.56 = 162,461.40/x
  3. Step 3: Cross multiply
    289,788.48x = 399,904.56 × 162,461.40
  4. Step 4: Simplify right side
    289,788.48x = 64,969,054,683.98
  5. Step 5: Solve for x
    x = 64,969,054,683.98/289,788.48
  6. Step 6: Final answer
    x = 224,194.75

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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.