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Finding the Fourth Proportional to 346,099.80, 519,149.70 and 121,713.60

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Solution

The fourth proportional to 346,099.80, 519,149.70 and 121,713.60 is: 182,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,099.80 : 519,149.70 = 121,713.60 : x
  2. Step 2: Convert to fraction form
    346,099.80/519,149.70 = 121,713.60/x
  3. Step 3: Cross multiply
    346,099.80x = 519,149.70 × 121,713.60
  4. Step 4: Simplify right side
    346,099.80x = 63,187,578,925.92
  5. Step 5: Solve for x
    x = 63,187,578,925.92/346,099.80
  6. Step 6: Final answer
    x = 182,570.40

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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.