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Finding the Fourth Proportional to 346,059.60, 519,089.40 and 212,506.80

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Solution

The fourth proportional to 346,059.60, 519,089.40 and 212,506.80 is: 318,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,059.60 : 519,089.40 = 212,506.80 : x
  2. Step 2: Convert to fraction form
    346,059.60/519,089.40 = 212,506.80/x
  3. Step 3: Cross multiply
    346,059.60x = 519,089.40 × 212,506.80
  4. Step 4: Simplify right side
    346,059.60x = 110,310,027,307.92
  5. Step 5: Solve for x
    x = 110,310,027,307.92/346,059.60
  6. Step 6: Final answer
    x = 318,760.20

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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.