Home / 286,113.78-394,829.10-157,052.16

Finding the Fourth Proportional to 286,113.78, 394,829.10 and 157,052.16

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Solution

The fourth proportional to 286,113.78, 394,829.10 and 157,052.16 is: 216,727.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,113.78 : 394,829.10 = 157,052.16 : x
  2. Step 2: Convert to fraction form
    286,113.78/394,829.10 = 157,052.16/x
  3. Step 3: Cross multiply
    286,113.78x = 394,829.10 × 157,052.16
  4. Step 4: Simplify right side
    286,113.78x = 62,008,762,985.86
  5. Step 5: Solve for x
    x = 62,008,762,985.86/286,113.78
  6. Step 6: Final answer
    x = 216,727.64

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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.