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Finding the Fourth Proportional to 349,074.60, 523,611.90 and 260,501.10

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Solution

The fourth proportional to 349,074.60, 523,611.90 and 260,501.10 is: 390,751.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,074.60 : 523,611.90 = 260,501.10 : x
  2. Step 2: Convert to fraction form
    349,074.60/523,611.90 = 260,501.10/x
  3. Step 3: Cross multiply
    349,074.60x = 523,611.90 × 260,501.10
  4. Step 4: Simplify right side
    349,074.60x = 136,401,475,923.09
  5. Step 5: Solve for x
    x = 136,401,475,923.09/349,074.60
  6. Step 6: Final answer
    x = 390,751.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.