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Finding the Fourth Proportional to 379,751, 569,751.30 and 155,300.24

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Solution

The fourth proportional to 379,751, 569,751.30 and 155,300.24 is: 233,001.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,751 : 569,751.30 = 155,300.24 : x
  2. Step 2: Convert to fraction form
    379,751/569,751.30 = 155,300.24/x
  3. Step 3: Cross multiply
    379,751x = 569,751.30 × 155,300.24
  4. Step 4: Simplify right side
    379,751x = 88,482,513,630.31
  5. Step 5: Solve for x
    x = 88,482,513,630.31/379,751
  6. Step 6: Final answer
    x = 233,001.40

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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.