Home / 313,731.68-432,948.80-170,491.76

Finding the Fourth Proportional to 313,731.68, 432,948.80 and 170,491.76

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Solution

The fourth proportional to 313,731.68, 432,948.80 and 170,491.76 is: 235,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,731.68 : 432,948.80 = 170,491.76 : x
  2. Step 2: Convert to fraction form
    313,731.68/432,948.80 = 170,491.76/x
  3. Step 3: Cross multiply
    313,731.68x = 432,948.80 × 170,491.76
  4. Step 4: Simplify right side
    313,731.68x = 73,814,202,901.89
  5. Step 5: Solve for x
    x = 73,814,202,901.89/313,731.68
  6. Step 6: Final answer
    x = 235,278.13

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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.