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Finding the Fourth Proportional to 210,759.63, 316,243.23 and 98,423.54

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Solution

The fourth proportional to 210,759.63, 316,243.23 and 98,423.54 is: 147,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,759.63 : 316,243.23 = 98,423.54 : x
  2. Step 2: Convert to fraction form
    210,759.63/316,243.23 = 98,423.54/x
  3. Step 3: Cross multiply
    210,759.63x = 316,243.23 × 98,423.54
  4. Step 4: Simplify right side
    210,759.63x = 31,125,778,443.69
  5. Step 5: Solve for x
    x = 31,125,778,443.69/210,759.63
  6. Step 6: Final answer
    x = 147,683.78

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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.