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Finding the Fourth Proportional to 480,206.19, 720,098.23 and 255,513.21

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Solution

The fourth proportional to 480,206.19, 720,098.23 and 255,513.21 is: 383,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,206.19 : 720,098.23 = 255,513.21 : x
  2. Step 2: Convert to fraction form
    480,206.19/720,098.23 = 255,513.21/x
  3. Step 3: Cross multiply
    480,206.19x = 720,098.23 × 255,513.21
  4. Step 4: Simplify right side
    480,206.19x = 183,994,611,327.54
  5. Step 5: Solve for x
    x = 183,994,611,327.54/480,206.19
  6. Step 6: Final answer
    x = 383,157.52

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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.