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Finding the Fourth Proportional to 319,935.60, 480,000.60 and 179,600.40

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Solution

The fourth proportional to 319,935.60, 480,000.60 and 179,600.40 is: 269,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,935.60 : 480,000.60 = 179,600.40 : x
  2. Step 2: Convert to fraction form
    319,935.60/480,000.60 = 179,600.40/x
  3. Step 3: Cross multiply
    319,935.60x = 480,000.60 × 179,600.40
  4. Step 4: Simplify right side
    319,935.60x = 86,208,299,760.24
  5. Step 5: Solve for x
    x = 86,208,299,760.24/319,935.60
  6. Step 6: Final answer
    x = 269,455.16

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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.