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Finding the Fourth Proportional to 210,647.71, 316,051.36 and 126,466.67

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Solution

The fourth proportional to 210,647.71, 316,051.36 and 126,466.67 is: 189,747.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,647.71 : 316,051.36 = 126,466.67 : x
  2. Step 2: Convert to fraction form
    210,647.71/316,051.36 = 126,466.67/x
  3. Step 3: Cross multiply
    210,647.71x = 316,051.36 × 126,466.67
  4. Step 4: Simplify right side
    210,647.71x = 39,969,963,048.17
  5. Step 5: Solve for x
    x = 39,969,963,048.17/210,647.71
  6. Step 6: Final answer
    x = 189,747.91

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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.