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Finding the Fourth Proportional to 247,155.91, 370,409.76 and 140,588.87

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Solution

The fourth proportional to 247,155.91, 370,409.76 and 140,588.87 is: 210,698.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,155.91 : 370,409.76 = 140,588.87 : x
  2. Step 2: Convert to fraction form
    247,155.91/370,409.76 = 140,588.87/x
  3. Step 3: Cross multiply
    247,155.91x = 370,409.76 × 140,588.87
  4. Step 4: Simplify right side
    247,155.91x = 52,075,487,743.32
  5. Step 5: Solve for x
    x = 52,075,487,743.32/247,155.91
  6. Step 6: Final answer
    x = 210,698.94

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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.