Home / 410,621.80-615,875.10-130,167.40

Finding the Fourth Proportional to 410,621.80, 615,875.10 and 130,167.40

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Solution

The fourth proportional to 410,621.80, 615,875.10 and 130,167.40 is: 195,232.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,621.80 : 615,875.10 = 130,167.40 : x
  2. Step 2: Convert to fraction form
    410,621.80/615,875.10 = 130,167.40/x
  3. Step 3: Cross multiply
    410,621.80x = 615,875.10 × 130,167.40
  4. Step 4: Simplify right side
    410,621.80x = 80,166,860,491.74
  5. Step 5: Solve for x
    x = 80,166,860,491.74/410,621.80
  6. Step 6: Final answer
    x = 195,232.84

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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.