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Finding the Fourth Proportional to 349,172.20, 522,980.70 and 302,516.20

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Solution

The fourth proportional to 349,172.20, 522,980.70 and 302,516.20 is: 453,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,172.20 : 522,980.70 = 302,516.20 : x
  2. Step 2: Convert to fraction form
    349,172.20/522,980.70 = 302,516.20/x
  3. Step 3: Cross multiply
    349,172.20x = 522,980.70 × 302,516.20
  4. Step 4: Simplify right side
    349,172.20x = 158,210,134,037.34
  5. Step 5: Solve for x
    x = 158,210,134,037.34/349,172.20
  6. Step 6: Final answer
    x = 453,100.60

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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.