Home / 317,445.12-438,079.64-174,218.49

Finding the Fourth Proportional to 317,445.12, 438,079.64 and 174,218.49

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Solution

The fourth proportional to 317,445.12, 438,079.64 and 174,218.49 is: 240,424.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,445.12 : 438,079.64 = 174,218.49 : x
  2. Step 2: Convert to fraction form
    317,445.12/438,079.64 = 174,218.49/x
  3. Step 3: Cross multiply
    317,445.12x = 438,079.64 × 174,218.49
  4. Step 4: Simplify right side
    317,445.12x = 76,321,572,509.45
  5. Step 5: Solve for x
    x = 76,321,572,509.45/317,445.12
  6. Step 6: Final answer
    x = 240,424.46

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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.