Home / 279,622.07-385,746.53-189,009.66

Finding the Fourth Proportional to 279,622.07, 385,746.53 and 189,009.66

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Solution

The fourth proportional to 279,622.07, 385,746.53 and 189,009.66 is: 260,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,622.07 : 385,746.53 = 189,009.66 : x
  2. Step 2: Convert to fraction form
    279,622.07/385,746.53 = 189,009.66/x
  3. Step 3: Cross multiply
    279,622.07x = 385,746.53 × 189,009.66
  4. Step 4: Simplify right side
    279,622.07x = 72,909,819,536.43
  5. Step 5: Solve for x
    x = 72,909,819,536.43/279,622.07
  6. Step 6: Final answer
    x = 260,744.16

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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.