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Finding the Fourth Proportional to 210,104.40, 315,108.54 and 60,343.50

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Solution

The fourth proportional to 210,104.40, 315,108.54 and 60,343.50 is: 90,501.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,104.40 : 315,108.54 = 60,343.50 : x
  2. Step 2: Convert to fraction form
    210,104.40/315,108.54 = 60,343.50/x
  3. Step 3: Cross multiply
    210,104.40x = 315,108.54 × 60,343.50
  4. Step 4: Simplify right side
    210,104.40x = 19,014,752,183.49
  5. Step 5: Solve for x
    x = 19,014,752,183.49/210,104.40
  6. Step 6: Final answer
    x = 90,501.45

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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.