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Finding the Fourth Proportional to 242,612.40, 334,806.44 and 140,698.30

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Solution

The fourth proportional to 242,612.40, 334,806.44 and 140,698.30 is: 194,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,612.40 : 334,806.44 = 140,698.30 : x
  2. Step 2: Convert to fraction form
    242,612.40/334,806.44 = 140,698.30/x
  3. Step 3: Cross multiply
    242,612.40x = 334,806.44 × 140,698.30
  4. Step 4: Simplify right side
    242,612.40x = 47,106,696,937.05
  5. Step 5: Solve for x
    x = 47,106,696,937.05/242,612.40
  6. Step 6: Final answer
    x = 194,164.42

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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.