Home / 489,939.30-734,908.61-153,008.83

Finding the Fourth Proportional to 489,939.30, 734,908.61 and 153,008.83

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Solution

The fourth proportional to 489,939.30, 734,908.61 and 153,008.83 is: 229,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,939.30 : 734,908.61 = 153,008.83 : x
  2. Step 2: Convert to fraction form
    489,939.30/734,908.61 = 153,008.83/x
  3. Step 3: Cross multiply
    489,939.30x = 734,908.61 × 153,008.83
  4. Step 4: Simplify right side
    489,939.30x = 112,447,506,573.03
  5. Step 5: Solve for x
    x = 112,447,506,573.03/489,939.30
  6. Step 6: Final answer
    x = 229,513.14

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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.