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Finding the Fourth Proportional to 832.50, 1,148.10 and 537.45

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Solution

The fourth proportional to 832.50, 1,148.10 and 537.45 is: 741.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    832.50 : 1,148.10 = 537.45 : x
  2. Step 2: Convert to fraction form
    832.50/1,148.10 = 537.45/x
  3. Step 3: Cross multiply
    832.50x = 1,148.10 × 537.45
  4. Step 4: Simplify right side
    832.50x = 617,051.28
  5. Step 5: Solve for x
    x = 617,051.28/832.50
  6. Step 6: Final answer
    x = 741.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.