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Finding the Fourth Proportional to 309,545.15, 464,239.76 and 119,940.35

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Solution

The fourth proportional to 309,545.15, 464,239.76 and 119,940.35 is: 179,880.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,545.15 : 464,239.76 = 119,940.35 : x
  2. Step 2: Convert to fraction form
    309,545.15/464,239.76 = 119,940.35/x
  3. Step 3: Cross multiply
    309,545.15x = 464,239.76 × 119,940.35
  4. Step 4: Simplify right side
    309,545.15x = 55,681,076,377.42
  5. Step 5: Solve for x
    x = 55,681,076,377.42/309,545.15
  6. Step 6: Final answer
    x = 179,880.31

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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.