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Finding the Fourth Proportional to 545.58, 752.76 and 368.87

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Solution

The fourth proportional to 545.58, 752.76 and 368.87 is: 508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    545.58 : 752.76 = 368.87 : x
  2. Step 2: Convert to fraction form
    545.58/752.76 = 368.87/x
  3. Step 3: Cross multiply
    545.58x = 752.76 × 368.87
  4. Step 4: Simplify right side
    545.58x = 277,666.82
  5. Step 5: Solve for x
    x = 277,666.82/545.58
  6. Step 6: Final answer
    x = 508.94

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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.