Home / 313,678.34-432,869.88-170,439.42

Finding the Fourth Proportional to 313,678.34, 432,869.88 and 170,439.42

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Solution

The fourth proportional to 313,678.34, 432,869.88 and 170,439.42 is: 235,203.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,678.34 : 432,869.88 = 170,439.42 : x
  2. Step 2: Convert to fraction form
    313,678.34/432,869.88 = 170,439.42/x
  3. Step 3: Cross multiply
    313,678.34x = 432,869.88 × 170,439.42
  4. Step 4: Simplify right side
    313,678.34x = 73,778,091,282.67
  5. Step 5: Solve for x
    x = 73,778,091,282.67/313,678.34
  6. Step 6: Final answer
    x = 235,203.01

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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.