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Finding the Fourth Proportional to 349,551.58, 521,775.50 and 299,950.42

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Solution

The fourth proportional to 349,551.58, 521,775.50 and 299,950.42 is: 447,735.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,551.58 : 521,775.50 = 299,950.42 : x
  2. Step 2: Convert to fraction form
    349,551.58/521,775.50 = 299,950.42/x
  3. Step 3: Cross multiply
    349,551.58x = 521,775.50 × 299,950.42
  4. Step 4: Simplify right side
    349,551.58x = 156,506,778,870.96
  5. Step 5: Solve for x
    x = 156,506,778,870.96/349,551.58
  6. Step 6: Final answer
    x = 447,735.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.