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Finding the Fourth Proportional to 395,314.38, 545,312.52 and 234,012.24

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Solution

The fourth proportional to 395,314.38, 545,312.52 and 234,012.24 is: 322,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,314.38 : 545,312.52 = 234,012.24 : x
  2. Step 2: Convert to fraction form
    395,314.38/545,312.52 = 234,012.24/x
  3. Step 3: Cross multiply
    395,314.38x = 545,312.52 × 234,012.24
  4. Step 4: Simplify right side
    395,314.38x = 127,609,804,305.25
  5. Step 5: Solve for x
    x = 127,609,804,305.25/395,314.38
  6. Step 6: Final answer
    x = 322,805.87

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1.5x scale

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.