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Finding the Fourth Proportional to 524,815.20, 787,417.20 and 169,840.80

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Solution

The fourth proportional to 524,815.20, 787,417.20 and 169,840.80 is: 254,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,815.20 : 787,417.20 = 169,840.80 : x
  2. Step 2: Convert to fraction form
    524,815.20/787,417.20 = 169,840.80/x
  3. Step 3: Cross multiply
    524,815.20x = 787,417.20 × 169,840.80
  4. Step 4: Simplify right side
    524,815.20x = 133,735,567,181.76
  5. Step 5: Solve for x
    x = 133,735,567,181.76/524,815.20
  6. Step 6: Final answer
    x = 254,824.11

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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.