Home / 287,830.26-430,970.49-187,742.34

Finding the Fourth Proportional to 287,830.26, 430,970.49 and 187,742.34

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Solution

The fourth proportional to 287,830.26, 430,970.49 and 187,742.34 is: 281,108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,830.26 : 430,970.49 = 187,742.34 : x
  2. Step 2: Convert to fraction form
    287,830.26/430,970.49 = 187,742.34/x
  3. Step 3: Cross multiply
    287,830.26x = 430,970.49 × 187,742.34
  4. Step 4: Simplify right side
    287,830.26x = 80,911,408,263.55
  5. Step 5: Solve for x
    x = 80,911,408,263.55/287,830.26
  6. Step 6: Final answer
    x = 281,108.07

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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.