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Finding the Fourth Proportional to 358,735, 495,054.30 and 207,919.48

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Solution

The fourth proportional to 358,735, 495,054.30 and 207,919.48 is: 286,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,735 : 495,054.30 = 207,919.48 : x
  2. Step 2: Convert to fraction form
    358,735/495,054.30 = 207,919.48/x
  3. Step 3: Cross multiply
    358,735x = 495,054.30 × 207,919.48
  4. Step 4: Simplify right side
    358,735x = 102,931,432,627.76
  5. Step 5: Solve for x
    x = 102,931,432,627.76/358,735
  6. Step 6: Final answer
    x = 286,928.88

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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.