Home / 296,909.85-445,358.28-72,271.47

Finding the Fourth Proportional to 296,909.85, 445,358.28 and 72,271.47

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Solution

The fourth proportional to 296,909.85, 445,358.28 and 72,271.47 is: 108,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,909.85 : 445,358.28 = 72,271.47 : x
  2. Step 2: Convert to fraction form
    296,909.85/445,358.28 = 72,271.47/x
  3. Step 3: Cross multiply
    296,909.85x = 445,358.28 × 72,271.47
  4. Step 4: Simplify right side
    296,909.85x = 32,186,697,572.27
  5. Step 5: Solve for x
    x = 32,186,697,572.27/296,909.85
  6. Step 6: Final answer
    x = 108,405.62

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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.