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Finding the Fourth Proportional to 219,342.29, 328,946.40 and 92,980.13

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Solution

The fourth proportional to 219,342.29, 328,946.40 and 92,980.13 is: 139,441.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,342.29 : 328,946.40 = 92,980.13 : x
  2. Step 2: Convert to fraction form
    219,342.29/328,946.40 = 92,980.13/x
  3. Step 3: Cross multiply
    219,342.29x = 328,946.40 × 92,980.13
  4. Step 4: Simplify right side
    219,342.29x = 30,585,477,390.30
  5. Step 5: Solve for x
    x = 30,585,477,390.30/219,342.29
  6. Step 6: Final answer
    x = 139,441.77

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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.