Home / 289,077.64-433,508.70-99,485.02

Finding the Fourth Proportional to 289,077.64, 433,508.70 and 99,485.02

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Solution

The fourth proportional to 289,077.64, 433,508.70 and 99,485.02 is: 149,190.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,077.64 : 433,508.70 = 99,485.02 : x
  2. Step 2: Convert to fraction form
    289,077.64/433,508.70 = 99,485.02/x
  3. Step 3: Cross multiply
    289,077.64x = 433,508.70 × 99,485.02
  4. Step 4: Simplify right side
    289,077.64x = 43,127,621,689.67
  5. Step 5: Solve for x
    x = 43,127,621,689.67/289,077.64
  6. Step 6: Final answer
    x = 149,190.44

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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.