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Finding the Fourth Proportional to 291,315.26, 402,074.62 and 183,812.88

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Solution

The fourth proportional to 291,315.26, 402,074.62 and 183,812.88 is: 253,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,315.26 : 402,074.62 = 183,812.88 : x
  2. Step 2: Convert to fraction form
    291,315.26/402,074.62 = 183,812.88/x
  3. Step 3: Cross multiply
    291,315.26x = 402,074.62 × 183,812.88
  4. Step 4: Simplify right side
    291,315.26x = 73,906,493,877.11
  5. Step 5: Solve for x
    x = 73,906,493,877.11/291,315.26
  6. Step 6: Final answer
    x = 253,699.36

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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.