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Finding the Fourth Proportional to 346,514.40, 519,771.60 and 159,890.40

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Solution

The fourth proportional to 346,514.40, 519,771.60 and 159,890.40 is: 239,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,514.40 : 519,771.60 = 159,890.40 : x
  2. Step 2: Convert to fraction form
    346,514.40/519,771.60 = 159,890.40/x
  3. Step 3: Cross multiply
    346,514.40x = 519,771.60 × 159,890.40
  4. Step 4: Simplify right side
    346,514.40x = 83,106,489,032.64
  5. Step 5: Solve for x
    x = 83,106,489,032.64/346,514.40
  6. Step 6: Final answer
    x = 239,835.60

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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.