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Finding the Fourth Proportional to 642,793.65, 964,200.21 and 243,327.18

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Solution

The fourth proportional to 642,793.65, 964,200.21 and 243,327.18 is: 364,994.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,793.65 : 964,200.21 = 243,327.18 : x
  2. Step 2: Convert to fraction form
    642,793.65/964,200.21 = 243,327.18/x
  3. Step 3: Cross multiply
    642,793.65x = 964,200.21 × 243,327.18
  4. Step 4: Simplify right side
    642,793.65x = 234,616,118,054.71
  5. Step 5: Solve for x
    x = 234,616,118,054.71/642,793.65
  6. Step 6: Final answer
    x = 364,994.46

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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.