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Finding the Fourth Proportional to 348,532.30, 521,632.05 and 243,556.30

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Solution

The fourth proportional to 348,532.30, 521,632.05 and 243,556.30 is: 364,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,532.30 : 521,632.05 = 243,556.30 : x
  2. Step 2: Convert to fraction form
    348,532.30/521,632.05 = 243,556.30/x
  3. Step 3: Cross multiply
    348,532.30x = 521,632.05 × 243,556.30
  4. Step 4: Simplify right side
    348,532.30x = 127,046,772,059.42
  5. Step 5: Solve for x
    x = 127,046,772,059.42/348,532.30
  6. Step 6: Final answer
    x = 364,519.36

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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.