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Finding the Fourth Proportional to 145,371.56, 218,015.19 and 56,605.28

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Solution

The fourth proportional to 145,371.56, 218,015.19 and 56,605.28 is: 84,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,371.56 : 218,015.19 = 56,605.28 : x
  2. Step 2: Convert to fraction form
    145,371.56/218,015.19 = 56,605.28/x
  3. Step 3: Cross multiply
    145,371.56x = 218,015.19 × 56,605.28
  4. Step 4: Simplify right side
    145,371.56x = 12,340,809,784.13
  5. Step 5: Solve for x
    x = 12,340,809,784.13/145,371.56
  6. Step 6: Final answer
    x = 84,891.50

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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.