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Finding the Fourth Proportional to 210,435.50, 315,654.06 and 52,663.52

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Solution

The fourth proportional to 210,435.50, 315,654.06 and 52,663.52 is: 78,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,435.50 : 315,654.06 = 52,663.52 : x
  2. Step 2: Convert to fraction form
    210,435.50/315,654.06 = 52,663.52/x
  3. Step 3: Cross multiply
    210,435.50x = 315,654.06 × 52,663.52
  4. Step 4: Simplify right side
    210,435.50x = 16,623,453,901.89
  5. Step 5: Solve for x
    x = 16,623,453,901.89/210,435.50
  6. Step 6: Final answer
    x = 78,995.48

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1.5x scale

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.