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Finding the Fourth Proportional to 260,432.88, 390,688.32 and 94,259.76

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Solution

The fourth proportional to 260,432.88, 390,688.32 and 94,259.76 is: 141,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,432.88 : 390,688.32 = 94,259.76 : x
  2. Step 2: Convert to fraction form
    260,432.88/390,688.32 = 94,259.76/x
  3. Step 3: Cross multiply
    260,432.88x = 390,688.32 × 94,259.76
  4. Step 4: Simplify right side
    260,432.88x = 36,826,187,278.00
  5. Step 5: Solve for x
    x = 36,826,187,278.00/260,432.88
  6. Step 6: Final answer
    x = 141,403.76

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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.