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Finding the Fourth Proportional to 319,280.82, 478,597.86 and 207,032.25

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Solution

The fourth proportional to 319,280.82, 478,597.86 and 207,032.25 is: 310,338.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,280.82 : 478,597.86 = 207,032.25 : x
  2. Step 2: Convert to fraction form
    319,280.82/478,597.86 = 207,032.25/x
  3. Step 3: Cross multiply
    319,280.82x = 478,597.86 × 207,032.25
  4. Step 4: Simplify right side
    319,280.82x = 99,085,191,800.99
  5. Step 5: Solve for x
    x = 99,085,191,800.99/319,280.82
  6. Step 6: Final answer
    x = 310,338.69

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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.