Home / 218,457.24-301,520.16-142,962

Finding the Fourth Proportional to 218,457.24, 301,520.16 and 142,962

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Solution

The fourth proportional to 218,457.24, 301,520.16 and 142,962 is: 197,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,457.24 : 301,520.16 = 142,962 : x
  2. Step 2: Convert to fraction form
    218,457.24/301,520.16 = 142,962/x
  3. Step 3: Cross multiply
    218,457.24x = 301,520.16 × 142,962
  4. Step 4: Simplify right side
    218,457.24x = 43,105,925,113.92
  5. Step 5: Solve for x
    x = 43,105,925,113.92/218,457.24
  6. Step 6: Final answer
    x = 197,319.74

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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.