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Finding the Fourth Proportional to 343,630, 515,454.72 and 94,312

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Solution

The fourth proportional to 343,630, 515,454.72 and 94,312 is: 141,470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,630 : 515,454.72 = 94,312 : x
  2. Step 2: Convert to fraction form
    343,630/515,454.72 = 94,312/x
  3. Step 3: Cross multiply
    343,630x = 515,454.72 × 94,312
  4. Step 4: Simplify right side
    343,630x = 48,613,565,552.64
  5. Step 5: Solve for x
    x = 48,613,565,552.64/343,630
  6. Step 6: Final answer
    x = 141,470.67

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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.