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Finding the Fourth Proportional to 169,688.64, 254,520 and 57,378.24

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Solution

The fourth proportional to 169,688.64, 254,520 and 57,378.24 is: 86,062.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,688.64 : 254,520 = 57,378.24 : x
  2. Step 2: Convert to fraction form
    169,688.64/254,520 = 57,378.24/x
  3. Step 3: Cross multiply
    169,688.64x = 254,520 × 57,378.24
  4. Step 4: Simplify right side
    169,688.64x = 14,603,909,644.80
  5. Step 5: Solve for x
    x = 14,603,909,644.80/169,688.64
  6. Step 6: Final answer
    x = 86,062.98

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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.