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Finding the Fourth Proportional to 200,981.40, 301,212.90 and 154,001.40

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Solution

The fourth proportional to 200,981.40, 301,212.90 and 154,001.40 is: 230,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,981.40 : 301,212.90 = 154,001.40 : x
  2. Step 2: Convert to fraction form
    200,981.40/301,212.90 = 154,001.40/x
  3. Step 3: Cross multiply
    200,981.40x = 301,212.90 × 154,001.40
  4. Step 4: Simplify right side
    200,981.40x = 46,387,208,298.06
  5. Step 5: Solve for x
    x = 46,387,208,298.06/200,981.40
  6. Step 6: Final answer
    x = 230,803.49

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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.