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Finding the Fourth Proportional to 508,101.05, 761,487.17 and 208,230.54

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Solution

The fourth proportional to 508,101.05, 761,487.17 and 208,230.54 is: 312,073.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,101.05 : 761,487.17 = 208,230.54 : x
  2. Step 2: Convert to fraction form
    508,101.05/761,487.17 = 208,230.54/x
  3. Step 3: Cross multiply
    508,101.05x = 761,487.17 × 208,230.54
  4. Step 4: Simplify right side
    508,101.05x = 158,564,883,571.02
  5. Step 5: Solve for x
    x = 158,564,883,571.02/508,101.05
  6. Step 6: Final answer
    x = 312,073.52

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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.