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Finding the Fourth Proportional to 259,804.89, 358,398.66 and 157,803.21

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Solution

The fourth proportional to 259,804.89, 358,398.66 and 157,803.21 is: 217,688.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,804.89 : 358,398.66 = 157,803.21 : x
  2. Step 2: Convert to fraction form
    259,804.89/358,398.66 = 157,803.21/x
  3. Step 3: Cross multiply
    259,804.89x = 358,398.66 × 157,803.21
  4. Step 4: Simplify right side
    259,804.89x = 56,556,459,007.70
  5. Step 5: Solve for x
    x = 56,556,459,007.70/259,804.89
  6. Step 6: Final answer
    x = 217,688.20

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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.