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Finding the Fourth Proportional to 358,765.39, 495,117.57 and 205,802.56

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Solution

The fourth proportional to 358,765.39, 495,117.57 and 205,802.56 is: 284,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,765.39 : 495,117.57 = 205,802.56 : x
  2. Step 2: Convert to fraction form
    358,765.39/495,117.57 = 205,802.56/x
  3. Step 3: Cross multiply
    358,765.39x = 495,117.57 × 205,802.56
  4. Step 4: Simplify right side
    358,765.39x = 101,896,463,406.98
  5. Step 5: Solve for x
    x = 101,896,463,406.98/358,765.39
  6. Step 6: Final answer
    x = 284,019.77

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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.