Home / 287,256.51-430,885.22-118,591.72

Finding the Fourth Proportional to 287,256.51, 430,885.22 and 118,591.72

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Solution

The fourth proportional to 287,256.51, 430,885.22 and 118,591.72 is: 177,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,256.51 : 430,885.22 = 118,591.72 : x
  2. Step 2: Convert to fraction form
    287,256.51/430,885.22 = 118,591.72/x
  3. Step 3: Cross multiply
    287,256.51x = 430,885.22 × 118,591.72
  4. Step 4: Simplify right side
    287,256.51x = 51,099,417,692.21
  5. Step 5: Solve for x
    x = 51,099,417,692.21/287,256.51
  6. Step 6: Final answer
    x = 177,887.76

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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.