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Finding the Fourth Proportional to 328,994.88, 493,510.35 and 104,339.05

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Solution

The fourth proportional to 328,994.88, 493,510.35 and 104,339.05 is: 156,514.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,994.88 : 493,510.35 = 104,339.05 : x
  2. Step 2: Convert to fraction form
    328,994.88/493,510.35 = 104,339.05/x
  3. Step 3: Cross multiply
    328,994.88x = 493,510.35 × 104,339.05
  4. Step 4: Simplify right side
    328,994.88x = 51,492,401,084.17
  5. Step 5: Solve for x
    x = 51,492,401,084.17/328,994.88
  6. Step 6: Final answer
    x = 156,514.29

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1.5x scale

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.