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Finding the Fourth Proportional to 314,074.80, 470,966.40 and 136,490.40

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Solution

The fourth proportional to 314,074.80, 470,966.40 and 136,490.40 is: 204,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,074.80 : 470,966.40 = 136,490.40 : x
  2. Step 2: Convert to fraction form
    314,074.80/470,966.40 = 136,490.40/x
  3. Step 3: Cross multiply
    314,074.80x = 470,966.40 × 136,490.40
  4. Step 4: Simplify right side
    314,074.80x = 64,282,392,322.56
  5. Step 5: Solve for x
    x = 64,282,392,322.56/314,074.80
  6. Step 6: Final answer
    x = 204,672.24

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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.