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Finding the Fourth Proportional to 215,683, 297,607.53 and 125,021.27

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Solution

The fourth proportional to 215,683, 297,607.53 and 125,021.27 is: 172,509.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,683 : 297,607.53 = 125,021.27 : x
  2. Step 2: Convert to fraction form
    215,683/297,607.53 = 125,021.27/x
  3. Step 3: Cross multiply
    215,683x = 297,607.53 × 125,021.27
  4. Step 4: Simplify right side
    215,683x = 37,207,271,362.16
  5. Step 5: Solve for x
    x = 37,207,271,362.16/215,683
  6. Step 6: Final answer
    x = 172,509.06

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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.