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Finding the Fourth Proportional to 346,138.60, 519,440.10 and 121,498.60

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Solution

The fourth proportional to 346,138.60, 519,440.10 and 121,498.60 is: 182,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,138.60 : 519,440.10 = 121,498.60 : x
  2. Step 2: Convert to fraction form
    346,138.60/519,440.10 = 121,498.60/x
  3. Step 3: Cross multiply
    346,138.60x = 519,440.10 × 121,498.60
  4. Step 4: Simplify right side
    346,138.60x = 63,111,244,933.86
  5. Step 5: Solve for x
    x = 63,111,244,933.86/346,138.60
  6. Step 6: Final answer
    x = 182,329.40

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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.