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Finding the Fourth Proportional to 153,289.40, 211,358.43 and 104,914.67

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Solution

The fourth proportional to 153,289.40, 211,358.43 and 104,914.67 is: 144,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,289.40 : 211,358.43 = 104,914.67 : x
  2. Step 2: Convert to fraction form
    153,289.40/211,358.43 = 104,914.67/x
  3. Step 3: Cross multiply
    153,289.40x = 211,358.43 × 104,914.67
  4. Step 4: Simplify right side
    153,289.40x = 22,174,598,878.38
  5. Step 5: Solve for x
    x = 22,174,598,878.38/153,289.40
  6. Step 6: Final answer
    x = 144,658.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.