Home / 410,192.60-615,386.10-210,543.80

Finding the Fourth Proportional to 410,192.60, 615,386.10 and 210,543.80

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Solution

The fourth proportional to 410,192.60, 615,386.10 and 210,543.80 is: 315,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,192.60 : 615,386.10 = 210,543.80 : x
  2. Step 2: Convert to fraction form
    410,192.60/615,386.10 = 210,543.80/x
  3. Step 3: Cross multiply
    410,192.60x = 615,386.10 × 210,543.80
  4. Step 4: Simplify right side
    410,192.60x = 129,565,727,961.18
  5. Step 5: Solve for x
    x = 129,565,727,961.18/410,192.60
  6. Step 6: Final answer
    x = 315,865.59

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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.