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Finding the Fourth Proportional to 245,328.40, 367,992.60 and 105,101.20

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Solution

The fourth proportional to 245,328.40, 367,992.60 and 105,101.20 is: 157,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,328.40 : 367,992.60 = 105,101.20 : x
  2. Step 2: Convert to fraction form
    245,328.40/367,992.60 = 105,101.20/x
  3. Step 3: Cross multiply
    245,328.40x = 367,992.60 × 105,101.20
  4. Step 4: Simplify right side
    245,328.40x = 38,676,463,851.12
  5. Step 5: Solve for x
    x = 38,676,463,851.12/245,328.40
  6. Step 6: Final answer
    x = 157,651.80

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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.