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Finding the Fourth Proportional to 229,319.70, 316,450.47 and 127,351.63

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Solution

The fourth proportional to 229,319.70, 316,450.47 and 127,351.63 is: 175,739.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,319.70 : 316,450.47 = 127,351.63 : x
  2. Step 2: Convert to fraction form
    229,319.70/316,450.47 = 127,351.63/x
  3. Step 3: Cross multiply
    229,319.70x = 316,450.47 × 127,351.63
  4. Step 4: Simplify right side
    229,319.70x = 40,300,483,168.77
  5. Step 5: Solve for x
    x = 40,300,483,168.77/229,319.70
  6. Step 6: Final answer
    x = 175,739.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.