Home / 286,031.47-394,709.82-156,967.03

Finding the Fourth Proportional to 286,031.47, 394,709.82 and 156,967.03

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Solution

The fourth proportional to 286,031.47, 394,709.82 and 156,967.03 is: 216,607.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,031.47 : 394,709.82 = 156,967.03 : x
  2. Step 2: Convert to fraction form
    286,031.47/394,709.82 = 156,967.03/x
  3. Step 3: Cross multiply
    286,031.47x = 394,709.82 × 156,967.03
  4. Step 4: Simplify right side
    286,031.47x = 61,956,426,507.18
  5. Step 5: Solve for x
    x = 61,956,426,507.18/286,031.47
  6. Step 6: Final answer
    x = 216,607.03

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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.