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Finding the Fourth Proportional to 243,205.70, 364,808.55 and 65,740.10

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Solution

The fourth proportional to 243,205.70, 364,808.55 and 65,740.10 is: 98,610.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,205.70 : 364,808.55 = 65,740.10 : x
  2. Step 2: Convert to fraction form
    243,205.70/364,808.55 = 65,740.10/x
  3. Step 3: Cross multiply
    243,205.70x = 364,808.55 × 65,740.10
  4. Step 4: Simplify right side
    243,205.70x = 23,982,550,557.86
  5. Step 5: Solve for x
    x = 23,982,550,557.86/243,205.70
  6. Step 6: Final answer
    x = 98,610.15

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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.