Home / 379,927.12-569,891.35-155,287.36

Finding the Fourth Proportional to 379,927.12, 569,891.35 and 155,287.36

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Solution

The fourth proportional to 379,927.12, 569,891.35 and 155,287.36 is: 232,931.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,927.12 : 569,891.35 = 155,287.36 : x
  2. Step 2: Convert to fraction form
    379,927.12/569,891.35 = 155,287.36/x
  3. Step 3: Cross multiply
    379,927.12x = 569,891.35 × 155,287.36
  4. Step 4: Simplify right side
    379,927.12x = 88,496,923,228.34
  5. Step 5: Solve for x
    x = 88,496,923,228.34/379,927.12
  6. Step 6: Final answer
    x = 232,931.31

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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.