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Finding the Fourth Proportional to 210,124.89, 289,970.99 and 119,480.87

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Solution

The fourth proportional to 210,124.89, 289,970.99 and 119,480.87 is: 164,882.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,124.89 : 289,970.99 = 119,480.87 : x
  2. Step 2: Convert to fraction form
    210,124.89/289,970.99 = 119,480.87/x
  3. Step 3: Cross multiply
    210,124.89x = 289,970.99 × 119,480.87
  4. Step 4: Simplify right side
    210,124.89x = 34,645,986,159.96
  5. Step 5: Solve for x
    x = 34,645,986,159.96/210,124.89
  6. Step 6: Final answer
    x = 164,882.83

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1.5x scale

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.