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Finding the Fourth Proportional to 380,060.30, 524,483.27 and 207,978.30

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Solution

The fourth proportional to 380,060.30, 524,483.27 and 207,978.30 is: 287,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,060.30 : 524,483.27 = 207,978.30 : x
  2. Step 2: Convert to fraction form
    380,060.30/524,483.27 = 207,978.30/x
  3. Step 3: Cross multiply
    380,060.30x = 524,483.27 × 207,978.30
  4. Step 4: Simplify right side
    380,060.30x = 109,081,138,873.04
  5. Step 5: Solve for x
    x = 109,081,138,873.04/380,060.30
  6. Step 6: Final answer
    x = 287,010.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.