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Finding the Fourth Proportional to 553,817, 830,725.42 and 133,092.88

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Solution

The fourth proportional to 553,817, 830,725.42 and 133,092.88 is: 199,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,817 : 830,725.42 = 133,092.88 : x
  2. Step 2: Convert to fraction form
    553,817/830,725.42 = 133,092.88/x
  3. Step 3: Cross multiply
    553,817x = 830,725.42 × 133,092.88
  4. Step 4: Simplify right side
    553,817x = 110,563,638,637.01
  5. Step 5: Solve for x
    x = 110,563,638,637.01/553,817
  6. Step 6: Final answer
    x = 199,639.30

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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.