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Finding the Fourth Proportional to 313,783.35, 470,625.48 and 136,242.69

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Solution

The fourth proportional to 313,783.35, 470,625.48 and 136,242.69 is: 204,342.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,783.35 : 470,625.48 = 136,242.69 : x
  2. Step 2: Convert to fraction form
    313,783.35/470,625.48 = 136,242.69/x
  3. Step 3: Cross multiply
    313,783.35x = 470,625.48 × 136,242.69
  4. Step 4: Simplify right side
    313,783.35x = 64,119,281,377.74
  5. Step 5: Solve for x
    x = 64,119,281,377.74/313,783.35
  6. Step 6: Final answer
    x = 204,342.52

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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.