Home / 219,117.40-327,984.90-156,909.40

Finding the Fourth Proportional to 219,117.40, 327,984.90 and 156,909.40

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Solution

The fourth proportional to 219,117.40, 327,984.90 and 156,909.40 is: 234,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,117.40 : 327,984.90 = 156,909.40 : x
  2. Step 2: Convert to fraction form
    219,117.40/327,984.90 = 156,909.40/x
  3. Step 3: Cross multiply
    219,117.40x = 327,984.90 × 156,909.40
  4. Step 4: Simplify right side
    219,117.40x = 51,463,913,868.06
  5. Step 5: Solve for x
    x = 51,463,913,868.06/219,117.40
  6. Step 6: Final answer
    x = 234,869.13

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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.