Home / 261,309.10-358,258.88-256,585.18

Finding the Fourth Proportional to 261,309.10, 358,258.88 and 256,585.18

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Solution

The fourth proportional to 261,309.10, 358,258.88 and 256,585.18 is: 351,782.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,309.10 : 358,258.88 = 256,585.18 : x
  2. Step 2: Convert to fraction form
    261,309.10/358,258.88 = 256,585.18/x
  3. Step 3: Cross multiply
    261,309.10x = 358,258.88 × 256,585.18
  4. Step 4: Simplify right side
    261,309.10x = 91,923,919,211.40
  5. Step 5: Solve for x
    x = 91,923,919,211.40/261,309.10
  6. Step 6: Final answer
    x = 351,782.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.