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Finding the Fourth Proportional to 169,529.40, 254,294.10 and 139,980.60

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Solution

The fourth proportional to 169,529.40, 254,294.10 and 139,980.60 is: 209,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,529.40 : 254,294.10 = 139,980.60 : x
  2. Step 2: Convert to fraction form
    169,529.40/254,294.10 = 139,980.60/x
  3. Step 3: Cross multiply
    169,529.40x = 254,294.10 × 139,980.60
  4. Step 4: Simplify right side
    169,529.40x = 35,596,240,694.46
  5. Step 5: Solve for x
    x = 35,596,240,694.46/169,529.40
  6. Step 6: Final answer
    x = 209,970.90

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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.