Home / 354,631.10-531,946.65-144,419.90

Finding the Fourth Proportional to 354,631.10, 531,946.65 and 144,419.90

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Solution

The fourth proportional to 354,631.10, 531,946.65 and 144,419.90 is: 216,629.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,631.10 : 531,946.65 = 144,419.90 : x
  2. Step 2: Convert to fraction form
    354,631.10/531,946.65 = 144,419.90/x
  3. Step 3: Cross multiply
    354,631.10x = 531,946.65 × 144,419.90
  4. Step 4: Simplify right side
    354,631.10x = 76,823,681,998.34
  5. Step 5: Solve for x
    x = 76,823,681,998.34/354,631.10
  6. Step 6: Final answer
    x = 216,629.85

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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.