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Finding the Fourth Proportional to 364,033.76, 545,680.80 and 139,336.64

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Solution

The fourth proportional to 364,033.76, 545,680.80 and 139,336.64 is: 208,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,033.76 : 545,680.80 = 139,336.64 : x
  2. Step 2: Convert to fraction form
    364,033.76/545,680.80 = 139,336.64/x
  3. Step 3: Cross multiply
    364,033.76x = 545,680.80 × 139,336.64
  4. Step 4: Simplify right side
    364,033.76x = 76,033,329,184.51
  5. Step 5: Solve for x
    x = 76,033,329,184.51/364,033.76
  6. Step 6: Final answer
    x = 208,863.40

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1.5x scale

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.