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Finding the Fourth Proportional to 313,290.79, 432,341.63 and 170,050.80

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Solution

The fourth proportional to 313,290.79, 432,341.63 and 170,050.80 is: 234,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,290.79 : 432,341.63 = 170,050.80 : x
  2. Step 2: Convert to fraction form
    313,290.79/432,341.63 = 170,050.80/x
  3. Step 3: Cross multiply
    313,290.79x = 432,341.63 × 170,050.80
  4. Step 4: Simplify right side
    313,290.79x = 73,520,037,042.84
  5. Step 5: Solve for x
    x = 73,520,037,042.84/313,290.79
  6. Step 6: Final answer
    x = 234,670.28

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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.