Home / 212,852.16-319,260.96-119,332.80

Finding the Fourth Proportional to 212,852.16, 319,260.96 and 119,332.80

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Solution

The fourth proportional to 212,852.16, 319,260.96 and 119,332.80 is: 178,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,852.16 : 319,260.96 = 119,332.80 : x
  2. Step 2: Convert to fraction form
    212,852.16/319,260.96 = 119,332.80/x
  3. Step 3: Cross multiply
    212,852.16x = 319,260.96 × 119,332.80
  4. Step 4: Simplify right side
    212,852.16x = 38,098,304,287.49
  5. Step 5: Solve for x
    x = 38,098,304,287.49/212,852.16
  6. Step 6: Final answer
    x = 178,989.51

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1.5x scale

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.