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Finding the Fourth Proportional to 172,800.72, 259,200.72 and 54,482.40

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Solution

The fourth proportional to 172,800.72, 259,200.72 and 54,482.40 is: 81,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,800.72 : 259,200.72 = 54,482.40 : x
  2. Step 2: Convert to fraction form
    172,800.72/259,200.72 = 54,482.40/x
  3. Step 3: Cross multiply
    172,800.72x = 259,200.72 × 54,482.40
  4. Step 4: Simplify right side
    172,800.72x = 14,121,877,307.33
  5. Step 5: Solve for x
    x = 14,121,877,307.33/172,800.72
  6. Step 6: Final answer
    x = 81,723.49

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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.