Home / 289,280.10-433,985.58-156,157.50

Finding the Fourth Proportional to 289,280.10, 433,985.58 and 156,157.50

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Solution

The fourth proportional to 289,280.10, 433,985.58 and 156,157.50 is: 234,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,280.10 : 433,985.58 = 156,157.50 : x
  2. Step 2: Convert to fraction form
    289,280.10/433,985.58 = 156,157.50/x
  3. Step 3: Cross multiply
    289,280.10x = 433,985.58 × 156,157.50
  4. Step 4: Simplify right side
    289,280.10x = 67,770,103,208.85
  5. Step 5: Solve for x
    x = 67,770,103,208.85/289,280.10
  6. Step 6: Final answer
    x = 234,271.57

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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.