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Finding the Fourth Proportional to 147,980.88, 222,004.80 and 42,808.32

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Solution

The fourth proportional to 147,980.88, 222,004.80 and 42,808.32 is: 64,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,980.88 : 222,004.80 = 42,808.32 : x
  2. Step 2: Convert to fraction form
    147,980.88/222,004.80 = 42,808.32/x
  3. Step 3: Cross multiply
    147,980.88x = 222,004.80 × 42,808.32
  4. Step 4: Simplify right side
    147,980.88x = 9,503,652,519.94
  5. Step 5: Solve for x
    x = 9,503,652,519.94/147,980.88
  6. Step 6: Final answer
    x = 64,222.17

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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.