Home / 218,709.90-301,756.73-142,341.35

Finding the Fourth Proportional to 218,709.90, 301,756.73 and 142,341.35

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Solution

The fourth proportional to 218,709.90, 301,756.73 and 142,341.35 is: 196,390.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,709.90 : 301,756.73 = 142,341.35 : x
  2. Step 2: Convert to fraction form
    218,709.90/301,756.73 = 142,341.35/x
  3. Step 3: Cross multiply
    218,709.90x = 301,756.73 × 142,341.35
  4. Step 4: Simplify right side
    218,709.90x = 42,952,458,099.30
  5. Step 5: Solve for x
    x = 42,952,458,099.30/218,709.90
  6. Step 6: Final answer
    x = 196,390.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.