Home / 260,138.28-358,983.24-145,417.17

Finding the Fourth Proportional to 260,138.28, 358,983.24 and 145,417.17

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Solution

The fourth proportional to 260,138.28, 358,983.24 and 145,417.17 is: 200,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,138.28 : 358,983.24 = 145,417.17 : x
  2. Step 2: Convert to fraction form
    260,138.28/358,983.24 = 145,417.17/x
  3. Step 3: Cross multiply
    260,138.28x = 358,983.24 × 145,417.17
  4. Step 4: Simplify right side
    260,138.28x = 52,202,326,838.23
  5. Step 5: Solve for x
    x = 52,202,326,838.23/260,138.28
  6. Step 6: Final answer
    x = 200,671.45

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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.