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Finding the Fourth Proportional to 259,497.88, 358,098.91 and 152,139.40

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Solution

The fourth proportional to 259,497.88, 358,098.91 and 152,139.40 is: 209,947.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,497.88 : 358,098.91 = 152,139.40 : x
  2. Step 2: Convert to fraction form
    259,497.88/358,098.91 = 152,139.40/x
  3. Step 3: Cross multiply
    259,497.88x = 358,098.91 × 152,139.40
  4. Step 4: Simplify right side
    259,497.88x = 54,480,953,308.05
  5. Step 5: Solve for x
    x = 54,480,953,308.05/259,497.88
  6. Step 6: Final answer
    x = 209,947.59

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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.