Home / 480,320.40-720,495.18-164,772.84

Finding the Fourth Proportional to 480,320.40, 720,495.18 and 164,772.84

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Solution

The fourth proportional to 480,320.40, 720,495.18 and 164,772.84 is: 247,164.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,320.40 : 720,495.18 = 164,772.84 : x
  2. Step 2: Convert to fraction form
    480,320.40/720,495.18 = 164,772.84/x
  3. Step 3: Cross multiply
    480,320.40x = 720,495.18 × 164,772.84
  4. Step 4: Simplify right side
    480,320.40x = 118,718,037,014.91
  5. Step 5: Solve for x
    x = 118,718,037,014.91/480,320.40
  6. Step 6: Final answer
    x = 247,164.26

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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.