Home / 219,730.40-329,725.20-145,066.40

Finding the Fourth Proportional to 219,730.40, 329,725.20 and 145,066.40

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Solution

The fourth proportional to 219,730.40, 329,725.20 and 145,066.40 is: 217,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,730.40 : 329,725.20 = 145,066.40 : x
  2. Step 2: Convert to fraction form
    219,730.40/329,725.20 = 145,066.40/x
  3. Step 3: Cross multiply
    219,730.40x = 329,725.20 × 145,066.40
  4. Step 4: Simplify right side
    219,730.40x = 47,832,047,753.28
  5. Step 5: Solve for x
    x = 47,832,047,753.28/219,730.40
  6. Step 6: Final answer
    x = 217,685.16

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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.