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Finding the Fourth Proportional to 355,118.60, 532,677.90 and 130,381.80

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Solution

The fourth proportional to 355,118.60, 532,677.90 and 130,381.80 is: 195,572.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,118.60 : 532,677.90 = 130,381.80 : x
  2. Step 2: Convert to fraction form
    355,118.60/532,677.90 = 130,381.80/x
  3. Step 3: Cross multiply
    355,118.60x = 532,677.90 × 130,381.80
  4. Step 4: Simplify right side
    355,118.60x = 69,451,500,851.51
  5. Step 5: Solve for x
    x = 69,451,500,851.51/355,118.60
  6. Step 6: Final answer
    x = 195,572.69

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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.