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Finding the Fourth Proportional to 480,315.15, 720,487.31 and 164,767.50

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Solution

The fourth proportional to 480,315.15, 720,487.31 and 164,767.50 is: 247,156.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,315.15 : 720,487.31 = 164,767.50 : x
  2. Step 2: Convert to fraction form
    480,315.15/720,487.31 = 164,767.50/x
  3. Step 3: Cross multiply
    480,315.15x = 720,487.31 × 164,767.50
  4. Step 4: Simplify right side
    480,315.15x = 118,712,892,026.59
  5. Step 5: Solve for x
    x = 118,712,892,026.59/480,315.15
  6. Step 6: Final answer
    x = 247,156.25

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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.