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Finding the Fourth Proportional to 346,417.80, 519,237.90 and 146,704.20

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Solution

The fourth proportional to 346,417.80, 519,237.90 and 146,704.20 is: 219,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,417.80 : 519,237.90 = 146,704.20 : x
  2. Step 2: Convert to fraction form
    346,417.80/519,237.90 = 146,704.20/x
  3. Step 3: Cross multiply
    346,417.80x = 519,237.90 × 146,704.20
  4. Step 4: Simplify right side
    346,417.80x = 76,174,380,729.18
  5. Step 5: Solve for x
    x = 76,174,380,729.18/346,417.80
  6. Step 6: Final answer
    x = 219,891.65

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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.