Home / 291,531.34-402,175.78-170,598.45

Finding the Fourth Proportional to 291,531.34, 402,175.78 and 170,598.45

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Solution

The fourth proportional to 291,531.34, 402,175.78 and 170,598.45 is: 235,345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,531.34 : 402,175.78 = 170,598.45 : x
  2. Step 2: Convert to fraction form
    291,531.34/402,175.78 = 170,598.45/x
  3. Step 3: Cross multiply
    291,531.34x = 402,175.78 × 170,598.45
  4. Step 4: Simplify right side
    291,531.34x = 68,610,564,695.54
  5. Step 5: Solve for x
    x = 68,610,564,695.54/291,531.34
  6. Step 6: Final answer
    x = 235,345.42

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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.