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Finding the Fourth Proportional to 432,277.65, 648,518.54 and 147,971.70

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Solution

The fourth proportional to 432,277.65, 648,518.54 and 147,971.70 is: 221,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,277.65 : 648,518.54 = 147,971.70 : x
  2. Step 2: Convert to fraction form
    432,277.65/648,518.54 = 147,971.70/x
  3. Step 3: Cross multiply
    432,277.65x = 648,518.54 × 147,971.70
  4. Step 4: Simplify right side
    432,277.65x = 95,962,390,105.46
  5. Step 5: Solve for x
    x = 95,962,390,105.46/432,277.65
  6. Step 6: Final answer
    x = 221,992.49

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1.5x scale

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.