Home / 379,931.70-569,897.43-143,219.03

Finding the Fourth Proportional to 379,931.70, 569,897.43 and 143,219.03

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Solution

The fourth proportional to 379,931.70, 569,897.43 and 143,219.03 is: 214,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,931.70 : 569,897.43 = 143,219.03 : x
  2. Step 2: Convert to fraction form
    379,931.70/569,897.43 = 143,219.03/x
  3. Step 3: Cross multiply
    379,931.70x = 569,897.43 × 143,219.03
  4. Step 4: Simplify right side
    379,931.70x = 81,620,154,274.61
  5. Step 5: Solve for x
    x = 81,620,154,274.61/379,931.70
  6. Step 6: Final answer
    x = 214,828.49

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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.