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Finding the Fourth Proportional to 361,036.55, 498,238.18 and 197,700

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Solution

The fourth proportional to 361,036.55, 498,238.18 and 197,700 is: 272,830.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,036.55 : 498,238.18 = 197,700 : x
  2. Step 2: Convert to fraction form
    361,036.55/498,238.18 = 197,700/x
  3. Step 3: Cross multiply
    361,036.55x = 498,238.18 × 197,700
  4. Step 4: Simplify right side
    361,036.55x = 98,501,688,186
  5. Step 5: Solve for x
    x = 98,501,688,186/361,036.55
  6. Step 6: Final answer
    x = 272,830.24

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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.