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Finding the Fourth Proportional to 291,665.68, 402,498.77 and 157,529.68

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Solution

The fourth proportional to 291,665.68, 402,498.77 and 157,529.68 is: 217,391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,665.68 : 402,498.77 = 157,529.68 : x
  2. Step 2: Convert to fraction form
    291,665.68/402,498.77 = 157,529.68/x
  3. Step 3: Cross multiply
    291,665.68x = 402,498.77 × 157,529.68
  4. Step 4: Simplify right side
    291,665.68x = 63,405,499,638.35
  5. Step 5: Solve for x
    x = 63,405,499,638.35/291,665.68
  6. Step 6: Final answer
    x = 217,391.02

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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.