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Finding the Fourth Proportional to 340,708.80, 510,079.05 and 330,867.30

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Solution

The fourth proportional to 340,708.80, 510,079.05 and 330,867.30 is: 495,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,708.80 : 510,079.05 = 330,867.30 : x
  2. Step 2: Convert to fraction form
    340,708.80/510,079.05 = 330,867.30/x
  3. Step 3: Cross multiply
    340,708.80x = 510,079.05 × 330,867.30
  4. Step 4: Simplify right side
    340,708.80x = 168,768,478,060.07
  5. Step 5: Solve for x
    x = 168,768,478,060.07/340,708.80
  6. Step 6: Final answer
    x = 495,345.23

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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.