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Finding the Fourth Proportional to 145,879.32, 218,819 and 46,047.32

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Solution

The fourth proportional to 145,879.32, 218,819 and 46,047.32 is: 69,070.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,879.32 : 218,819 = 46,047.32 : x
  2. Step 2: Convert to fraction form
    145,879.32/218,819 = 46,047.32/x
  3. Step 3: Cross multiply
    145,879.32x = 218,819 × 46,047.32
  4. Step 4: Simplify right side
    145,879.32x = 10,076,028,515.08
  5. Step 5: Solve for x
    x = 10,076,028,515.08/145,879.32
  6. Step 6: Final answer
    x = 69,070.99

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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.