Home / 288,985.45-433,515.08-111,543.20

Finding the Fourth Proportional to 288,985.45, 433,515.08 and 111,543.20

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Solution

The fourth proportional to 288,985.45, 433,515.08 and 111,543.20 is: 167,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,985.45 : 433,515.08 = 111,543.20 : x
  2. Step 2: Convert to fraction form
    288,985.45/433,515.08 = 111,543.20/x
  3. Step 3: Cross multiply
    288,985.45x = 433,515.08 × 111,543.20
  4. Step 4: Simplify right side
    288,985.45x = 48,355,660,215.81
  5. Step 5: Solve for x
    x = 48,355,660,215.81/288,985.45
  6. Step 6: Final answer
    x = 167,329.05

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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.