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Finding the Fourth Proportional to 313,290.68, 432,329.54 and 170,047.67

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Solution

The fourth proportional to 313,290.68, 432,329.54 and 170,047.67 is: 234,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,290.68 : 432,329.54 = 170,047.67 : x
  2. Step 2: Convert to fraction form
    313,290.68/432,329.54 = 170,047.67/x
  3. Step 3: Cross multiply
    313,290.68x = 432,329.54 × 170,047.67
  4. Step 4: Simplify right side
    313,290.68x = 73,516,627,937.29
  5. Step 5: Solve for x
    x = 73,516,627,937.29/313,290.68
  6. Step 6: Final answer
    x = 234,659.48

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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.