Home / 257,631.10-355,531.07-157,029.10

Finding the Fourth Proportional to 257,631.10, 355,531.07 and 157,029.10

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Solution

The fourth proportional to 257,631.10, 355,531.07 and 157,029.10 is: 216,700.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,631.10 : 355,531.07 = 157,029.10 : x
  2. Step 2: Convert to fraction form
    257,631.10/355,531.07 = 157,029.10/x
  3. Step 3: Cross multiply
    257,631.10x = 355,531.07 × 157,029.10
  4. Step 4: Simplify right side
    257,631.10x = 55,828,722,270.16
  5. Step 5: Solve for x
    x = 55,828,722,270.16/257,631.10
  6. Step 6: Final answer
    x = 216,700.25

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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.