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Finding the Fourth Proportional to 245,269.72, 338,473.40 and 143,301

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Solution

The fourth proportional to 245,269.72, 338,473.40 and 143,301 is: 197,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,269.72 : 338,473.40 = 143,301 : x
  2. Step 2: Convert to fraction form
    245,269.72/338,473.40 = 143,301/x
  3. Step 3: Cross multiply
    245,269.72x = 338,473.40 × 143,301
  4. Step 4: Simplify right side
    245,269.72x = 48,503,576,693.40
  5. Step 5: Solve for x
    x = 48,503,576,693.40/245,269.72
  6. Step 6: Final answer
    x = 197,756.07

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1.5x scale

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.