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Finding the Fourth Proportional to 312,301.70, 430,973.40 and 169,058.06

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Solution

The fourth proportional to 312,301.70, 430,973.40 and 169,058.06 is: 233,298.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,301.70 : 430,973.40 = 169,058.06 : x
  2. Step 2: Convert to fraction form
    312,301.70/430,973.40 = 169,058.06/x
  3. Step 3: Cross multiply
    312,301.70x = 430,973.40 × 169,058.06
  4. Step 4: Simplify right side
    312,301.70x = 72,859,526,915.60
  5. Step 5: Solve for x
    x = 72,859,526,915.60/312,301.70
  6. Step 6: Final answer
    x = 233,298.53

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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.