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Finding the Fourth Proportional to 402,537.71, 555,554.60 and 259,713.25

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Solution

The fourth proportional to 402,537.71, 555,554.60 and 259,713.25 is: 358,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,537.71 : 555,554.60 = 259,713.25 : x
  2. Step 2: Convert to fraction form
    402,537.71/555,554.60 = 259,713.25/x
  3. Step 3: Cross multiply
    402,537.71x = 555,554.60 × 259,713.25
  4. Step 4: Simplify right side
    402,537.71x = 144,284,890,718.45
  5. Step 5: Solve for x
    x = 144,284,890,718.45/402,537.71
  6. Step 6: Final answer
    x = 358,438.20

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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.