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Finding the Fourth Proportional to 545,165.70, 752,328.54 and 303,443.06

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Solution

The fourth proportional to 545,165.70, 752,328.54 and 303,443.06 is: 418,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,165.70 : 752,328.54 = 303,443.06 : x
  2. Step 2: Convert to fraction form
    545,165.70/752,328.54 = 303,443.06/x
  3. Step 3: Cross multiply
    545,165.70x = 752,328.54 × 303,443.06
  4. Step 4: Simplify right side
    545,165.70x = 228,288,874,302.93
  5. Step 5: Solve for x
    x = 228,288,874,302.93/545,165.70
  6. Step 6: Final answer
    x = 418,751.35

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1.5x scale

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.