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Finding the Fourth Proportional to 228,015.75, 342,068.99 and 70,237.47

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Solution

The fourth proportional to 228,015.75, 342,068.99 and 70,237.47 is: 105,370.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,015.75 : 342,068.99 = 70,237.47 : x
  2. Step 2: Convert to fraction form
    228,015.75/342,068.99 = 70,237.47/x
  3. Step 3: Cross multiply
    228,015.75x = 342,068.99 × 70,237.47
  4. Step 4: Simplify right side
    228,015.75x = 24,026,060,071.87
  5. Step 5: Solve for x
    x = 24,026,060,071.87/228,015.75
  6. Step 6: Final answer
    x = 105,370.18

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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.