Home / 319,328.08-478,853.01-91,573.45

Finding the Fourth Proportional to 319,328.08, 478,853.01 and 91,573.45

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Solution

The fourth proportional to 319,328.08, 478,853.01 and 91,573.45 is: 137,320.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,328.08 : 478,853.01 = 91,573.45 : x
  2. Step 2: Convert to fraction form
    319,328.08/478,853.01 = 91,573.45/x
  3. Step 3: Cross multiply
    319,328.08x = 478,853.01 × 91,573.45
  4. Step 4: Simplify right side
    319,328.08x = 43,850,222,168.58
  5. Step 5: Solve for x
    x = 43,850,222,168.58/319,328.08
  6. Step 6: Final answer
    x = 137,320.28

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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.