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Finding the Fourth Proportional to 346,715.60, 520,246.20 and 197,070.80

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Solution

The fourth proportional to 346,715.60, 520,246.20 and 197,070.80 is: 295,704.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,715.60 : 520,246.20 = 197,070.80 : x
  2. Step 2: Convert to fraction form
    346,715.60/520,246.20 = 197,070.80/x
  3. Step 3: Cross multiply
    346,715.60x = 520,246.20 × 197,070.80
  4. Step 4: Simplify right side
    346,715.60x = 102,525,334,830.96
  5. Step 5: Solve for x
    x = 102,525,334,830.96/346,715.60
  6. Step 6: Final answer
    x = 295,704.42

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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.