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Finding the Fourth Proportional to 278,492.94, 417,807.45 and 88,953.35

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Solution

The fourth proportional to 278,492.94, 417,807.45 and 88,953.35 is: 133,451.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,492.94 : 417,807.45 = 88,953.35 : x
  2. Step 2: Convert to fraction form
    278,492.94/417,807.45 = 88,953.35/x
  3. Step 3: Cross multiply
    278,492.94x = 417,807.45 × 88,953.35
  4. Step 4: Simplify right side
    278,492.94x = 37,165,370,243.42
  5. Step 5: Solve for x
    x = 37,165,370,243.42/278,492.94
  6. Step 6: Final answer
    x = 133,451.75

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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.