Home / 319,380.12-478,988.46-94,688.01

Finding the Fourth Proportional to 319,380.12, 478,988.46 and 94,688.01

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Solution

The fourth proportional to 319,380.12, 478,988.46 and 94,688.01 is: 142,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,380.12 : 478,988.46 = 94,688.01 : x
  2. Step 2: Convert to fraction form
    319,380.12/478,988.46 = 94,688.01/x
  3. Step 3: Cross multiply
    319,380.12x = 478,988.46 × 94,688.01
  4. Step 4: Simplify right side
    319,380.12x = 45,354,464,090.36
  5. Step 5: Solve for x
    x = 45,354,464,090.36/319,380.12
  6. Step 6: Final answer
    x = 142,007.79

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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.