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Finding the Fourth Proportional to 345,997.76, 519,201.60 and 146,307.20

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Solution

The fourth proportional to 345,997.76, 519,201.60 and 146,307.20 is: 219,547.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,997.76 : 519,201.60 = 146,307.20 : x
  2. Step 2: Convert to fraction form
    345,997.76/519,201.60 = 146,307.20/x
  3. Step 3: Cross multiply
    345,997.76x = 519,201.60 × 146,307.20
  4. Step 4: Simplify right side
    345,997.76x = 75,962,932,331.52
  5. Step 5: Solve for x
    x = 75,962,932,331.52/345,997.76
  6. Step 6: Final answer
    x = 219,547.47

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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.