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Finding the Fourth Proportional to 247,814.87, 371,736.45 and 70,307.93

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Solution

The fourth proportional to 247,814.87, 371,736.45 and 70,307.93 is: 105,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,814.87 : 371,736.45 = 70,307.93 : x
  2. Step 2: Convert to fraction form
    247,814.87/371,736.45 = 70,307.93/x
  3. Step 3: Cross multiply
    247,814.87x = 371,736.45 × 70,307.93
  4. Step 4: Simplify right side
    247,814.87x = 26,136,020,305.05
  5. Step 5: Solve for x
    x = 26,136,020,305.05/247,814.87
  6. Step 6: Final answer
    x = 105,465.91

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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.