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Finding the Fourth Proportional to 342,415.65, 513,693.52 and 117,746.90

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Solution

The fourth proportional to 342,415.65, 513,693.52 and 117,746.90 is: 176,644.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,415.65 : 513,693.52 = 117,746.90 : x
  2. Step 2: Convert to fraction form
    342,415.65/513,693.52 = 117,746.90/x
  3. Step 3: Cross multiply
    342,415.65x = 513,693.52 × 117,746.90
  4. Step 4: Simplify right side
    342,415.65x = 60,485,819,530.09
  5. Step 5: Solve for x
    x = 60,485,819,530.09/342,415.65
  6. Step 6: Final answer
    x = 176,644.44

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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.