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Finding the Fourth Proportional to 291,503.04, 437,297.76 and 91,841.28

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Solution

The fourth proportional to 291,503.04, 437,297.76 and 91,841.28 is: 137,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,503.04 : 437,297.76 = 91,841.28 : x
  2. Step 2: Convert to fraction form
    291,503.04/437,297.76 = 91,841.28/x
  3. Step 3: Cross multiply
    291,503.04x = 437,297.76 × 91,841.28
  4. Step 4: Simplify right side
    291,503.04x = 40,161,986,019.53
  5. Step 5: Solve for x
    x = 40,161,986,019.53/291,503.04
  6. Step 6: Final answer
    x = 137,775.53

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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.