Home / 317,860.01-438,641.96-172,665.08

Finding the Fourth Proportional to 317,860.01, 438,641.96 and 172,665.08

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Solution

The fourth proportional to 317,860.01, 438,641.96 and 172,665.08 is: 238,275.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,860.01 : 438,641.96 = 172,665.08 : x
  2. Step 2: Convert to fraction form
    317,860.01/438,641.96 = 172,665.08/x
  3. Step 3: Cross multiply
    317,860.01x = 438,641.96 × 172,665.08
  4. Step 4: Simplify right side
    317,860.01x = 75,738,149,114.76
  5. Step 5: Solve for x
    x = 75,738,149,114.76/317,860.01
  6. Step 6: Final answer
    x = 238,275.17

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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.