Home / 261,128.91-360,325.67-159,117.21

Finding the Fourth Proportional to 261,128.91, 360,325.67 and 159,117.21

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Solution

The fourth proportional to 261,128.91, 360,325.67 and 159,117.21 is: 219,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,128.91 : 360,325.67 = 159,117.21 : x
  2. Step 2: Convert to fraction form
    261,128.91/360,325.67 = 159,117.21/x
  3. Step 3: Cross multiply
    261,128.91x = 360,325.67 × 159,117.21
  4. Step 4: Simplify right side
    261,128.91x = 57,334,014,506.19
  5. Step 5: Solve for x
    x = 57,334,014,506.19/261,128.91
  6. Step 6: Final answer
    x = 219,562.11

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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.