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Finding the Fourth Proportional to 545,159.08, 752,319.57 and 303,436.47

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Solution

The fourth proportional to 545,159.08, 752,319.57 and 303,436.47 is: 418,742.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,159.08 : 752,319.57 = 303,436.47 : x
  2. Step 2: Convert to fraction form
    545,159.08/752,319.57 = 303,436.47/x
  3. Step 3: Cross multiply
    545,159.08x = 752,319.57 × 303,436.47
  4. Step 4: Simplify right side
    545,159.08x = 228,281,194,632.72
  5. Step 5: Solve for x
    x = 228,281,194,632.72/545,159.08
  6. Step 6: Final answer
    x = 418,742.35

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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.