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Finding the Fourth Proportional to 464,071.68, 640,458.09 and 260,119.35

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Solution

The fourth proportional to 464,071.68, 640,458.09 and 260,119.35 is: 358,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,071.68 : 640,458.09 = 260,119.35 : x
  2. Step 2: Convert to fraction form
    464,071.68/640,458.09 = 260,119.35/x
  3. Step 3: Cross multiply
    464,071.68x = 640,458.09 × 260,119.35
  4. Step 4: Simplify right side
    464,071.68x = 166,595,542,073.04
  5. Step 5: Solve for x
    x = 166,595,542,073.04/464,071.68
  6. Step 6: Final answer
    x = 358,986.66

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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.