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Finding the Fourth Proportional to 319,903.68, 480,150.75 and 162,242.85

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Solution

The fourth proportional to 319,903.68, 480,150.75 and 162,242.85 is: 243,514.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,903.68 : 480,150.75 = 162,242.85 : x
  2. Step 2: Convert to fraction form
    319,903.68/480,150.75 = 162,242.85/x
  3. Step 3: Cross multiply
    319,903.68x = 480,150.75 × 162,242.85
  4. Step 4: Simplify right side
    319,903.68x = 77,901,026,109.64
  5. Step 5: Solve for x
    x = 77,901,026,109.64/319,903.68
  6. Step 6: Final answer
    x = 243,514.00

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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.