Home / 317,618.81-474,143.53-272,150.56

Finding the Fourth Proportional to 317,618.81, 474,143.53 and 272,150.56

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Solution

The fourth proportional to 317,618.81, 474,143.53 and 272,150.56 is: 406,268.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,618.81 : 474,143.53 = 272,150.56 : x
  2. Step 2: Convert to fraction form
    317,618.81/474,143.53 = 272,150.56/x
  3. Step 3: Cross multiply
    317,618.81x = 474,143.53 × 272,150.56
  4. Step 4: Simplify right side
    317,618.81x = 129,038,423,478.41
  5. Step 5: Solve for x
    x = 129,038,423,478.41/317,618.81
  6. Step 6: Final answer
    x = 406,268.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.