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Finding the Fourth Proportional to 605,217.60, 907,826.40 and 161,985.60

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Solution

The fourth proportional to 605,217.60, 907,826.40 and 161,985.60 is: 242,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,217.60 : 907,826.40 = 161,985.60 : x
  2. Step 2: Convert to fraction form
    605,217.60/907,826.40 = 161,985.60/x
  3. Step 3: Cross multiply
    605,217.60x = 907,826.40 × 161,985.60
  4. Step 4: Simplify right side
    605,217.60x = 147,054,804,099.84
  5. Step 5: Solve for x
    x = 147,054,804,099.84/605,217.60
  6. Step 6: Final answer
    x = 242,978.40

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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.