Home / 319,059.20-478,502.40-94,419.20

Finding the Fourth Proportional to 319,059.20, 478,502.40 and 94,419.20

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Solution

The fourth proportional to 319,059.20, 478,502.40 and 94,419.20 is: 141,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,059.20 : 478,502.40 = 94,419.20 : x
  2. Step 2: Convert to fraction form
    319,059.20/478,502.40 = 94,419.20/x
  3. Step 3: Cross multiply
    319,059.20x = 478,502.40 × 94,419.20
  4. Step 4: Simplify right side
    319,059.20x = 45,179,813,806.08
  5. Step 5: Solve for x
    x = 45,179,813,806.08/319,059.20
  6. Step 6: Final answer
    x = 141,603.23

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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.