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Finding the Fourth Proportional to 201,339.40, 302,007.90 and 51,579.40

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Solution

The fourth proportional to 201,339.40, 302,007.90 and 51,579.40 is: 77,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,339.40 : 302,007.90 = 51,579.40 : x
  2. Step 2: Convert to fraction form
    201,339.40/302,007.90 = 51,579.40/x
  3. Step 3: Cross multiply
    201,339.40x = 302,007.90 × 51,579.40
  4. Step 4: Simplify right side
    201,339.40x = 15,577,386,277.26
  5. Step 5: Solve for x
    x = 15,577,386,277.26/201,339.40
  6. Step 6: Final answer
    x = 77,368.79

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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.