Home / 279,146.07-385,223.40-151,822.59

Finding the Fourth Proportional to 279,146.07, 385,223.40 and 151,822.59

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Solution

The fourth proportional to 279,146.07, 385,223.40 and 151,822.59 is: 209,516.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,146.07 : 385,223.40 = 151,822.59 : x
  2. Step 2: Convert to fraction form
    279,146.07/385,223.40 = 151,822.59/x
  3. Step 3: Cross multiply
    279,146.07x = 385,223.40 × 151,822.59
  4. Step 4: Simplify right side
    279,146.07x = 58,485,614,316.61
  5. Step 5: Solve for x
    x = 58,485,614,316.61/279,146.07
  6. Step 6: Final answer
    x = 209,516.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.