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Finding the Fourth Proportional to 245,366.86, 368,050.42 and 76,900.31

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Solution

The fourth proportional to 245,366.86, 368,050.42 and 76,900.31 is: 115,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,366.86 : 368,050.42 = 76,900.31 : x
  2. Step 2: Convert to fraction form
    245,366.86/368,050.42 = 76,900.31/x
  3. Step 3: Cross multiply
    245,366.86x = 368,050.42 × 76,900.31
  4. Step 4: Simplify right side
    245,366.86x = 28,303,191,393.63
  5. Step 5: Solve for x
    x = 28,303,191,393.63/245,366.86
  6. Step 6: Final answer
    x = 115,350.51

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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.