Home / 278,457.76-384,277.44-157,599.04

Finding the Fourth Proportional to 278,457.76, 384,277.44 and 157,599.04

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Solution

The fourth proportional to 278,457.76, 384,277.44 and 157,599.04 is: 217,489.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,457.76 : 384,277.44 = 157,599.04 : x
  2. Step 2: Convert to fraction form
    278,457.76/384,277.44 = 157,599.04/x
  3. Step 3: Cross multiply
    278,457.76x = 384,277.44 × 157,599.04
  4. Step 4: Simplify right side
    278,457.76x = 60,561,755,637.66
  5. Step 5: Solve for x
    x = 60,561,755,637.66/278,457.76
  6. Step 6: Final answer
    x = 217,489.92

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1.5x scale

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.