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Finding the Fourth Proportional to 385,549.65, 531,702.93 and 264,477.33

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Solution

The fourth proportional to 385,549.65, 531,702.93 and 264,477.33 is: 364,734.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,549.65 : 531,702.93 = 264,477.33 : x
  2. Step 2: Convert to fraction form
    385,549.65/531,702.93 = 264,477.33/x
  3. Step 3: Cross multiply
    385,549.65x = 531,702.93 × 264,477.33
  4. Step 4: Simplify right side
    385,549.65x = 140,623,371,279.58
  5. Step 5: Solve for x
    x = 140,623,371,279.58/385,549.65
  6. Step 6: Final answer
    x = 364,734.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.