Home / 291,799.13-402,682.79-157,663.13

Finding the Fourth Proportional to 291,799.13, 402,682.79 and 157,663.13

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Solution

The fourth proportional to 291,799.13, 402,682.79 and 157,663.13 is: 217,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,799.13 : 402,682.79 = 157,663.13 : x
  2. Step 2: Convert to fraction form
    291,799.13/402,682.79 = 157,663.13/x
  3. Step 3: Cross multiply
    291,799.13x = 402,682.79 × 157,663.13
  4. Step 4: Simplify right side
    291,799.13x = 63,488,227,449.28
  5. Step 5: Solve for x
    x = 63,488,227,449.28/291,799.13
  6. Step 6: Final answer
    x = 217,575.11

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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.