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Finding the Fourth Proportional to 545,085.45, 752,210.42 and 303,367.98

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Solution

The fourth proportional to 545,085.45, 752,210.42 and 303,367.98 is: 418,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,085.45 : 752,210.42 = 303,367.98 : x
  2. Step 2: Convert to fraction form
    545,085.45/752,210.42 = 303,367.98/x
  3. Step 3: Cross multiply
    545,085.45x = 752,210.42 × 303,367.98
  4. Step 4: Simplify right side
    545,085.45x = 228,196,559,513.97
  5. Step 5: Solve for x
    x = 228,196,559,513.97/545,085.45
  6. Step 6: Final answer
    x = 418,643.64

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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.