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Finding the Fourth Proportional to 207,730.16, 311,637.15 and 65,597.63

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Solution

The fourth proportional to 207,730.16, 311,637.15 and 65,597.63 is: 98,409.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,730.16 : 311,637.15 = 65,597.63 : x
  2. Step 2: Convert to fraction form
    207,730.16/311,637.15 = 65,597.63/x
  3. Step 3: Cross multiply
    207,730.16x = 311,637.15 × 65,597.63
  4. Step 4: Simplify right side
    207,730.16x = 20,442,658,459.95
  5. Step 5: Solve for x
    x = 20,442,658,459.95/207,730.16
  6. Step 6: Final answer
    x = 98,409.68

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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.