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Finding the Fourth Proportional to 306,973.70, 460,509.76 and 129,506.85

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Solution

The fourth proportional to 306,973.70, 460,509.76 and 129,506.85 is: 194,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,973.70 : 460,509.76 = 129,506.85 : x
  2. Step 2: Convert to fraction form
    306,973.70/460,509.76 = 129,506.85/x
  3. Step 3: Cross multiply
    306,973.70x = 460,509.76 × 129,506.85
  4. Step 4: Simplify right side
    306,973.70x = 59,639,167,845.26
  5. Step 5: Solve for x
    x = 59,639,167,845.26/306,973.70
  6. Step 6: Final answer
    x = 194,281.03

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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.