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Finding the Fourth Proportional to 340,503.62, 469,890.56 and 187,538.90

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Solution

The fourth proportional to 340,503.62, 469,890.56 and 187,538.90 is: 258,801.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,503.62 : 469,890.56 = 187,538.90 : x
  2. Step 2: Convert to fraction form
    340,503.62/469,890.56 = 187,538.90/x
  3. Step 3: Cross multiply
    340,503.62x = 469,890.56 × 187,538.90
  4. Step 4: Simplify right side
    340,503.62x = 88,122,758,742.78
  5. Step 5: Solve for x
    x = 88,122,758,742.78/340,503.62
  6. Step 6: Final answer
    x = 258,801.24

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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.