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Finding the Fourth Proportional to 291,661.59, 402,493.23 and 157,525.59

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Solution

The fourth proportional to 291,661.59, 402,493.23 and 157,525.59 is: 217,385.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,661.59 : 402,493.23 = 157,525.59 : x
  2. Step 2: Convert to fraction form
    291,661.59/402,493.23 = 157,525.59/x
  3. Step 3: Cross multiply
    291,661.59x = 402,493.23 × 157,525.59
  4. Step 4: Simplify right side
    291,661.59x = 63,402,984,593.06
  5. Step 5: Solve for x
    x = 63,402,984,593.06/291,661.59
  6. Step 6: Final answer
    x = 217,385.44

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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.