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Finding the Fourth Proportional to 1,051.52, 1,577.45 and 358.23

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Solution

The fourth proportional to 1,051.52, 1,577.45 and 358.23 is: 537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.52 : 1,577.45 = 358.23 : x
  2. Step 2: Convert to fraction form
    1,051.52/1,577.45 = 358.23/x
  3. Step 3: Cross multiply
    1,051.52x = 1,577.45 × 358.23
  4. Step 4: Simplify right side
    1,051.52x = 565,088.12
  5. Step 5: Solve for x
    x = 565,088.12/1,051.52
  6. Step 6: Final answer
    x = 537.40

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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.