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Finding the Fourth Proportional to 210,090.92, 315,088.38 and 60,330.02

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Solution

The fourth proportional to 210,090.92, 315,088.38 and 60,330.02 is: 90,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,090.92 : 315,088.38 = 60,330.02 : x
  2. Step 2: Convert to fraction form
    210,090.92/315,088.38 = 60,330.02/x
  3. Step 3: Cross multiply
    210,090.92x = 315,088.38 × 60,330.02
  4. Step 4: Simplify right side
    210,090.92x = 19,009,288,267.17
  5. Step 5: Solve for x
    x = 19,009,288,267.17/210,090.92
  6. Step 6: Final answer
    x = 90,481.25

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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.