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Finding the Fourth Proportional to 215,597.53, 297,365.21 and 158,217.47

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Solution

The fourth proportional to 215,597.53, 297,365.21 and 158,217.47 is: 218,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,597.53 : 297,365.21 = 158,217.47 : x
  2. Step 2: Convert to fraction form
    215,597.53/297,365.21 = 158,217.47/x
  3. Step 3: Cross multiply
    215,597.53x = 297,365.21 × 158,217.47
  4. Step 4: Simplify right side
    215,597.53x = 47,048,370,622.74
  5. Step 5: Solve for x
    x = 47,048,370,622.74/215,597.53
  6. Step 6: Final answer
    x = 218,223.14

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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.