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Finding the Fourth Proportional to 208,800.30, 313,200.45 and 155,656.20

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Solution

The fourth proportional to 208,800.30, 313,200.45 and 155,656.20 is: 233,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,800.30 : 313,200.45 = 155,656.20 : x
  2. Step 2: Convert to fraction form
    208,800.30/313,200.45 = 155,656.20/x
  3. Step 3: Cross multiply
    208,800.30x = 313,200.45 × 155,656.20
  4. Step 4: Simplify right side
    208,800.30x = 48,751,591,885.29
  5. Step 5: Solve for x
    x = 48,751,591,885.29/208,800.30
  6. Step 6: Final answer
    x = 233,484.30

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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.