Home / 287,254.04-430,910.55-109,910.21

Finding the Fourth Proportional to 287,254.04, 430,910.55 and 109,910.21

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Solution

The fourth proportional to 287,254.04, 430,910.55 and 109,910.21 is: 164,876.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,254.04 : 430,910.55 = 109,910.21 : x
  2. Step 2: Convert to fraction form
    287,254.04/430,910.55 = 109,910.21/x
  3. Step 3: Cross multiply
    287,254.04x = 430,910.55 × 109,910.21
  4. Step 4: Simplify right side
    287,254.04x = 47,361,466,887.16
  5. Step 5: Solve for x
    x = 47,361,466,887.16/287,254.04
  6. Step 6: Final answer
    x = 164,876.59

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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.