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Finding the Fourth Proportional to 379,501.55, 569,345.74 and 267,400.72

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Solution

The fourth proportional to 379,501.55, 569,345.74 and 267,400.72 is: 401,166.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,501.55 : 569,345.74 = 267,400.72 : x
  2. Step 2: Convert to fraction form
    379,501.55/569,345.74 = 267,400.72/x
  3. Step 3: Cross multiply
    379,501.55x = 569,345.74 × 267,400.72
  4. Step 4: Simplify right side
    379,501.55x = 152,243,459,039.63
  5. Step 5: Solve for x
    x = 152,243,459,039.63/379,501.55
  6. Step 6: Final answer
    x = 401,166.90

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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.