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Finding the Fourth Proportional to 259,496.88, 358,097.54 and 152,138.40

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Solution

The fourth proportional to 259,496.88, 358,097.54 and 152,138.40 is: 209,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,496.88 : 358,097.54 = 152,138.40 : x
  2. Step 2: Convert to fraction form
    259,496.88/358,097.54 = 152,138.40/x
  3. Step 3: Cross multiply
    259,496.88x = 358,097.54 × 152,138.40
  4. Step 4: Simplify right side
    259,496.88x = 54,480,386,018.84
  5. Step 5: Solve for x
    x = 54,480,386,018.84/259,496.88
  6. Step 6: Final answer
    x = 209,946.21

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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.