Home / 287,260.04-430,919.55-109,916.21

Finding the Fourth Proportional to 287,260.04, 430,919.55 and 109,916.21

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Solution

The fourth proportional to 287,260.04, 430,919.55 and 109,916.21 is: 164,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,260.04 : 430,919.55 = 109,916.21 : x
  2. Step 2: Convert to fraction form
    287,260.04/430,919.55 = 109,916.21/x
  3. Step 3: Cross multiply
    287,260.04x = 430,919.55 × 109,916.21
  4. Step 4: Simplify right side
    287,260.04x = 47,365,041,596.31
  5. Step 5: Solve for x
    x = 47,365,041,596.31/287,260.04
  6. Step 6: Final answer
    x = 164,885.59

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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.