Home / 307,430.28-424,252.89-171,464.40

Finding the Fourth Proportional to 307,430.28, 424,252.89 and 171,464.40

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Solution

The fourth proportional to 307,430.28, 424,252.89 and 171,464.40 is: 236,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,430.28 : 424,252.89 = 171,464.40 : x
  2. Step 2: Convert to fraction form
    307,430.28/424,252.89 = 171,464.40/x
  3. Step 3: Cross multiply
    307,430.28x = 424,252.89 × 171,464.40
  4. Step 4: Simplify right side
    307,430.28x = 72,744,267,232.12
  5. Step 5: Solve for x
    x = 72,744,267,232.12/307,430.28
  6. Step 6: Final answer
    x = 236,620.37

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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.