Home / 313,918.10-433,204.80-170,678.20

Finding the Fourth Proportional to 313,918.10, 433,204.80 and 170,678.20

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Solution

The fourth proportional to 313,918.10, 433,204.80 and 170,678.20 is: 235,534.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,918.10 : 433,204.80 = 170,678.20 : x
  2. Step 2: Convert to fraction form
    313,918.10/433,204.80 = 170,678.20/x
  3. Step 3: Cross multiply
    313,918.10x = 433,204.80 × 170,678.20
  4. Step 4: Simplify right side
    313,918.10x = 73,938,615,495.36
  5. Step 5: Solve for x
    x = 73,938,615,495.36/313,918.10
  6. Step 6: Final answer
    x = 235,534.73

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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.