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Finding the Fourth Proportional to 297,185.57, 445,776.80 and 72,547.19

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Solution

The fourth proportional to 297,185.57, 445,776.80 and 72,547.19 is: 108,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,185.57 : 445,776.80 = 72,547.19 : x
  2. Step 2: Convert to fraction form
    297,185.57/445,776.80 = 72,547.19/x
  3. Step 3: Cross multiply
    297,185.57x = 445,776.80 × 72,547.19
  4. Step 4: Simplify right side
    297,185.57x = 32,339,851,978.31
  5. Step 5: Solve for x
    x = 32,339,851,978.31/297,185.57
  6. Step 6: Final answer
    x = 108,820.40

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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.