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Finding the Fourth Proportional to 298,787, 448,312.88 and 156,598.44

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Solution

The fourth proportional to 298,787, 448,312.88 and 156,598.44 is: 234,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,787 : 448,312.88 = 156,598.44 : x
  2. Step 2: Convert to fraction form
    298,787/448,312.88 = 156,598.44/x
  3. Step 3: Cross multiply
    298,787x = 448,312.88 × 156,598.44
  4. Step 4: Simplify right side
    298,787x = 70,205,097,639.91
  5. Step 5: Solve for x
    x = 70,205,097,639.91/298,787
  6. Step 6: Final answer
    x = 234,967.04

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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.