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Finding the Fourth Proportional to 355,535.34, 490,966.18 and 228,432.40

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Solution

The fourth proportional to 355,535.34, 490,966.18 and 228,432.40 is: 315,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,535.34 : 490,966.18 = 228,432.40 : x
  2. Step 2: Convert to fraction form
    355,535.34/490,966.18 = 228,432.40/x
  3. Step 3: Cross multiply
    355,535.34x = 490,966.18 × 228,432.40
  4. Step 4: Simplify right side
    355,535.34x = 112,152,582,816.23
  5. Step 5: Solve for x
    x = 112,152,582,816.23/355,535.34
  6. Step 6: Final answer
    x = 315,447.07

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.