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Finding the Fourth Proportional to 484,598.40, 668,740.86 and 266,800.20

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Solution

The fourth proportional to 484,598.40, 668,740.86 and 266,800.20 is: 368,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,598.40 : 668,740.86 = 266,800.20 : x
  2. Step 2: Convert to fraction form
    484,598.40/668,740.86 = 266,800.20/x
  3. Step 3: Cross multiply
    484,598.40x = 668,740.86 × 266,800.20
  4. Step 4: Simplify right side
    484,598.40x = 178,420,195,196.17
  5. Step 5: Solve for x
    x = 178,420,195,196.17/484,598.40
  6. Step 6: Final answer
    x = 368,181.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.