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Finding the Fourth Proportional to 243,162.98, 364,743.36 and 65,688.20

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Solution

The fourth proportional to 243,162.98, 364,743.36 and 65,688.20 is: 98,532.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,162.98 : 364,743.36 = 65,688.20 : x
  2. Step 2: Convert to fraction form
    243,162.98/364,743.36 = 65,688.20/x
  3. Step 3: Cross multiply
    243,162.98x = 364,743.36 × 65,688.20
  4. Step 4: Simplify right side
    243,162.98x = 23,959,334,780.35
  5. Step 5: Solve for x
    x = 23,959,334,780.35/243,162.98
  6. Step 6: Final answer
    x = 98,532.00

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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.