Home / 279,128.16-385,192.62-151,800.84

Finding the Fourth Proportional to 279,128.16, 385,192.62 and 151,800.84

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Solution

The fourth proportional to 279,128.16, 385,192.62 and 151,800.84 is: 209,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,128.16 : 385,192.62 = 151,800.84 : x
  2. Step 2: Convert to fraction form
    279,128.16/385,192.62 = 151,800.84/x
  3. Step 3: Cross multiply
    279,128.16x = 385,192.62 × 151,800.84
  4. Step 4: Simplify right side
    279,128.16x = 58,472,563,277.80
  5. Step 5: Solve for x
    x = 58,472,563,277.80/279,128.16
  6. Step 6: Final answer
    x = 209,482.85

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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.