Home / 480,261.70-720,499.50-143,308.18

Finding the Fourth Proportional to 480,261.70, 720,499.50 and 143,308.18

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Solution

The fourth proportional to 480,261.70, 720,499.50 and 143,308.18 is: 214,994.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,261.70 : 720,499.50 = 143,308.18 : x
  2. Step 2: Convert to fraction form
    480,261.70/720,499.50 = 143,308.18/x
  3. Step 3: Cross multiply
    480,261.70x = 720,499.50 × 143,308.18
  4. Step 4: Simplify right side
    480,261.70x = 103,253,472,035.91
  5. Step 5: Solve for x
    x = 103,253,472,035.91/480,261.70
  6. Step 6: Final answer
    x = 214,994.18

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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.