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Finding the Fourth Proportional to 285,353, 426,155.61 and 229,278.28

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Solution

The fourth proportional to 285,353, 426,155.61 and 229,278.28 is: 342,411.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,353 : 426,155.61 = 229,278.28 : x
  2. Step 2: Convert to fraction form
    285,353/426,155.61 = 229,278.28/x
  3. Step 3: Cross multiply
    285,353x = 426,155.61 × 229,278.28
  4. Step 4: Simplify right side
    285,353x = 97,708,225,273.15
  5. Step 5: Solve for x
    x = 97,708,225,273.15/285,353
  6. Step 6: Final answer
    x = 342,411.77

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.