Home / 319,327.08-478,851.54-91,572.36

Finding the Fourth Proportional to 319,327.08, 478,851.54 and 91,572.36

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Solution

The fourth proportional to 319,327.08, 478,851.54 and 91,572.36 is: 137,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,327.08 : 478,851.54 = 91,572.36 : x
  2. Step 2: Convert to fraction form
    319,327.08/478,851.54 = 91,572.36/x
  3. Step 3: Cross multiply
    319,327.08x = 478,851.54 × 91,572.36
  4. Step 4: Simplify right side
    319,327.08x = 43,849,565,607.43
  5. Step 5: Solve for x
    x = 43,849,565,607.43/319,327.08
  6. Step 6: Final answer
    x = 137,318.66

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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.