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Finding the Fourth Proportional to 287,613.45, 430,928.10 and 182,309.40

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Solution

The fourth proportional to 287,613.45, 430,928.10 and 182,309.40 is: 273,152.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,613.45 : 430,928.10 = 182,309.40 : x
  2. Step 2: Convert to fraction form
    287,613.45/430,928.10 = 182,309.40/x
  3. Step 3: Cross multiply
    287,613.45x = 430,928.10 × 182,309.40
  4. Step 4: Simplify right side
    287,613.45x = 78,562,243,354.14
  5. Step 5: Solve for x
    x = 78,562,243,354.14/287,613.45
  6. Step 6: Final answer
    x = 273,152.19

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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.