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Finding the Fourth Proportional to 207,124.32, 285,819.12 and 117,700.32

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Solution

The fourth proportional to 207,124.32, 285,819.12 and 117,700.32 is: 162,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,124.32 : 285,819.12 = 117,700.32 : x
  2. Step 2: Convert to fraction form
    207,124.32/285,819.12 = 117,700.32/x
  3. Step 3: Cross multiply
    207,124.32x = 285,819.12 × 117,700.32
  4. Step 4: Simplify right side
    207,124.32x = 33,641,001,886.12
  5. Step 5: Solve for x
    x = 33,641,001,886.12/207,124.32
  6. Step 6: Final answer
    x = 162,419.37

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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.