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Finding the Fourth Proportional to 245,044.80, 367,785.90 and 211,802.40

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Solution

The fourth proportional to 245,044.80, 367,785.90 and 211,802.40 is: 317,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,044.80 : 367,785.90 = 211,802.40 : x
  2. Step 2: Convert to fraction form
    245,044.80/367,785.90 = 211,802.40/x
  3. Step 3: Cross multiply
    245,044.80x = 367,785.90 × 211,802.40
  4. Step 4: Simplify right side
    245,044.80x = 77,897,936,306.16
  5. Step 5: Solve for x
    x = 77,897,936,306.16/245,044.80
  6. Step 6: Final answer
    x = 317,892.63

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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.