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Finding the Fourth Proportional to 340,521.74, 469,915.72 and 187,556.88

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Solution

The fourth proportional to 340,521.74, 469,915.72 and 187,556.88 is: 258,826.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,521.74 : 469,915.72 = 187,556.88 : x
  2. Step 2: Convert to fraction form
    340,521.74/469,915.72 = 187,556.88/x
  3. Step 3: Cross multiply
    340,521.74x = 469,915.72 × 187,556.88
  4. Step 4: Simplify right side
    340,521.74x = 88,135,926,306.15
  5. Step 5: Solve for x
    x = 88,135,926,306.15/340,521.74
  6. Step 6: Final answer
    x = 258,826.14

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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.