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Finding the Fourth Proportional to 484,014.80, 726,281.40 and 217,816.40

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Solution

The fourth proportional to 484,014.80, 726,281.40 and 217,816.40 is: 326,841.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,014.80 : 726,281.40 = 217,816.40 : x
  2. Step 2: Convert to fraction form
    484,014.80/726,281.40 = 217,816.40/x
  3. Step 3: Cross multiply
    484,014.80x = 726,281.40 × 217,816.40
  4. Step 4: Simplify right side
    484,014.80x = 158,195,999,934.96
  5. Step 5: Solve for x
    x = 158,195,999,934.96/484,014.80
  6. Step 6: Final answer
    x = 326,841.25

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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.