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Finding the Fourth Proportional to 489,889.37, 734,836.65 and 152,901.80

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Solution

The fourth proportional to 489,889.37, 734,836.65 and 152,901.80 is: 229,353.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,889.37 : 734,836.65 = 152,901.80 : x
  2. Step 2: Convert to fraction form
    489,889.37/734,836.65 = 152,901.80/x
  3. Step 3: Cross multiply
    489,889.37x = 734,836.65 × 152,901.80
  4. Step 4: Simplify right side
    489,889.37x = 112,357,844,999.04
  5. Step 5: Solve for x
    x = 112,357,844,999.04/489,889.37
  6. Step 6: Final answer
    x = 229,353.51

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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.