Home / 402,890.04-603,817.74-166,399.20

Finding the Fourth Proportional to 402,890.04, 603,817.74 and 166,399.20

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Solution

The fourth proportional to 402,890.04, 603,817.74 and 166,399.20 is: 249,385.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,890.04 : 603,817.74 = 166,399.20 : x
  2. Step 2: Convert to fraction form
    402,890.04/603,817.74 = 166,399.20/x
  3. Step 3: Cross multiply
    402,890.04x = 603,817.74 × 166,399.20
  4. Step 4: Simplify right side
    402,890.04x = 100,474,788,881.81
  5. Step 5: Solve for x
    x = 100,474,788,881.81/402,890.04
  6. Step 6: Final answer
    x = 249,385.14

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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.