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Finding the Fourth Proportional to 245,426.60, 368,139.90 and 201,103.40

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Solution

The fourth proportional to 245,426.60, 368,139.90 and 201,103.40 is: 301,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,426.60 : 368,139.90 = 201,103.40 : x
  2. Step 2: Convert to fraction form
    245,426.60/368,139.90 = 201,103.40/x
  3. Step 3: Cross multiply
    245,426.60x = 368,139.90 × 201,103.40
  4. Step 4: Simplify right side
    245,426.60x = 74,034,185,565.66
  5. Step 5: Solve for x
    x = 74,034,185,565.66/245,426.60
  6. Step 6: Final answer
    x = 301,655.10

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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.