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Finding the Fourth Proportional to 293,298.38, 439,772.84 and 90,834.50

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Solution

The fourth proportional to 293,298.38, 439,772.84 and 90,834.50 is: 136,197.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,298.38 : 439,772.84 = 90,834.50 : x
  2. Step 2: Convert to fraction form
    293,298.38/439,772.84 = 90,834.50/x
  3. Step 3: Cross multiply
    293,298.38x = 439,772.84 × 90,834.50
  4. Step 4: Simplify right side
    293,298.38x = 39,946,547,705.50
  5. Step 5: Solve for x
    x = 39,946,547,705.50/293,298.38
  6. Step 6: Final answer
    x = 136,197.64

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