Home / 379,747.16-569,285.51-143,255.91

Finding the Fourth Proportional to 379,747.16, 569,285.51 and 143,255.91

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Solution

The fourth proportional to 379,747.16, 569,285.51 and 143,255.91 is: 214,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,747.16 : 569,285.51 = 143,255.91 : x
  2. Step 2: Convert to fraction form
    379,747.16/569,285.51 = 143,255.91/x
  3. Step 3: Cross multiply
    379,747.16x = 569,285.51 × 143,255.91
  4. Step 4: Simplify right side
    379,747.16x = 81,553,513,068.58
  5. Step 5: Solve for x
    x = 81,553,513,068.58/379,747.16
  6. Step 6: Final answer
    x = 214,757.40

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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.