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Finding the Fourth Proportional to 238,909.70, 358,364.18 and 163,802.15

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Solution

The fourth proportional to 238,909.70, 358,364.18 and 163,802.15 is: 245,702.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,909.70 : 358,364.18 = 163,802.15 : x
  2. Step 2: Convert to fraction form
    238,909.70/358,364.18 = 163,802.15/x
  3. Step 3: Cross multiply
    238,909.70x = 358,364.18 × 163,802.15
  4. Step 4: Simplify right side
    238,909.70x = 58,700,823,128.54
  5. Step 5: Solve for x
    x = 58,700,823,128.54/238,909.70
  6. Step 6: Final answer
    x = 245,702.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.