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Finding the Fourth Proportional to 189,041.95, 260,883.80 and 108,484.21

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Solution

The fourth proportional to 189,041.95, 260,883.80 and 108,484.21 is: 149,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,041.95 : 260,883.80 = 108,484.21 : x
  2. Step 2: Convert to fraction form
    189,041.95/260,883.80 = 108,484.21/x
  3. Step 3: Cross multiply
    189,041.95x = 260,883.80 × 108,484.21
  4. Step 4: Simplify right side
    189,041.95x = 28,301,772,673.59
  5. Step 5: Solve for x
    x = 28,301,772,673.59/189,041.95
  6. Step 6: Final answer
    x = 149,711.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.