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Finding the Fourth Proportional to 370,258.09, 510,955.28 and 200,492.21

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Solution

The fourth proportional to 370,258.09, 510,955.28 and 200,492.21 is: 276,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,258.09 : 510,955.28 = 200,492.21 : x
  2. Step 2: Convert to fraction form
    370,258.09/510,955.28 = 200,492.21/x
  3. Step 3: Cross multiply
    370,258.09x = 510,955.28 × 200,492.21
  4. Step 4: Simplify right side
    370,258.09x = 102,442,553,298.37
  5. Step 5: Solve for x
    x = 102,442,553,298.37/370,258.09
  6. Step 6: Final answer
    x = 276,678.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.