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Finding the Fourth Proportional to 207,078.90, 310,618.35 and 197,237.40

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Solution

The fourth proportional to 207,078.90, 310,618.35 and 197,237.40 is: 295,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,078.90 : 310,618.35 = 197,237.40 : x
  2. Step 2: Convert to fraction form
    207,078.90/310,618.35 = 197,237.40/x
  3. Step 3: Cross multiply
    207,078.90x = 310,618.35 × 197,237.40
  4. Step 4: Simplify right side
    207,078.90x = 61,265,555,746.29
  5. Step 5: Solve for x
    x = 61,265,555,746.29/207,078.90
  6. Step 6: Final answer
    x = 295,856.10

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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.