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Finding the Fourth Proportional to 228,088.62, 342,016.11 and 121,533.30

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Solution

The fourth proportional to 228,088.62, 342,016.11 and 121,533.30 is: 182,237.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,088.62 : 342,016.11 = 121,533.30 : x
  2. Step 2: Convert to fraction form
    228,088.62/342,016.11 = 121,533.30/x
  3. Step 3: Cross multiply
    228,088.62x = 342,016.11 × 121,533.30
  4. Step 4: Simplify right side
    228,088.62x = 41,566,346,501.46
  5. Step 5: Solve for x
    x = 41,566,346,501.46/228,088.62
  6. Step 6: Final answer
    x = 182,237.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.