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Finding the Fourth Proportional to 613,264.80, 919,897.20 and 163,984.80

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Solution

The fourth proportional to 613,264.80, 919,897.20 and 163,984.80 is: 245,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,264.80 : 919,897.20 = 163,984.80 : x
  2. Step 2: Convert to fraction form
    613,264.80/919,897.20 = 163,984.80/x
  3. Step 3: Cross multiply
    613,264.80x = 919,897.20 × 163,984.80
  4. Step 4: Simplify right side
    613,264.80x = 150,849,158,362.56
  5. Step 5: Solve for x
    x = 150,849,158,362.56/613,264.80
  6. Step 6: Final answer
    x = 245,977.20

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Similar ratio
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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.