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Finding the Fourth Proportional to 262,011.60, 392,677.20 and 121,471.20

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Solution

The fourth proportional to 262,011.60, 392,677.20 and 121,471.20 is: 182,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,011.60 : 392,677.20 = 121,471.20 : x
  2. Step 2: Convert to fraction form
    262,011.60/392,677.20 = 121,471.20/x
  3. Step 3: Cross multiply
    262,011.60x = 392,677.20 × 121,471.20
  4. Step 4: Simplify right side
    262,011.60x = 47,698,970,696.64
  5. Step 5: Solve for x
    x = 47,698,970,696.64/262,011.60
  6. Step 6: Final answer
    x = 182,049.08

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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.