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Finding the Fourth Proportional to 340,295.06, 510,403.70 and 90,996.50

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Solution

The fourth proportional to 340,295.06, 510,403.70 and 90,996.50 is: 136,484.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,295.06 : 510,403.70 = 90,996.50 : x
  2. Step 2: Convert to fraction form
    340,295.06/510,403.70 = 90,996.50/x
  3. Step 3: Cross multiply
    340,295.06x = 510,403.70 × 90,996.50
  4. Step 4: Simplify right side
    340,295.06x = 46,444,947,280.05
  5. Step 5: Solve for x
    x = 46,444,947,280.05/340,295.06
  6. Step 6: Final answer
    x = 136,484.34

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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.