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Finding the Fourth Proportional to 508,213.08, 762,390 and 171,350.16

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Solution

The fourth proportional to 508,213.08, 762,390 and 171,350.16 is: 257,048.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,213.08 : 762,390 = 171,350.16 : x
  2. Step 2: Convert to fraction form
    508,213.08/762,390 = 171,350.16/x
  3. Step 3: Cross multiply
    508,213.08x = 762,390 × 171,350.16
  4. Step 4: Simplify right side
    508,213.08x = 130,635,648,482.40
  5. Step 5: Solve for x
    x = 130,635,648,482.40/508,213.08
  6. Step 6: Final answer
    x = 257,048.97

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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.