Home / 307,448.03-424,278.86-171,490.78

Finding the Fourth Proportional to 307,448.03, 424,278.86 and 171,490.78

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Solution

The fourth proportional to 307,448.03, 424,278.86 and 171,490.78 is: 236,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,448.03 : 424,278.86 = 171,490.78 : x
  2. Step 2: Convert to fraction form
    307,448.03/424,278.86 = 171,490.78/x
  3. Step 3: Cross multiply
    307,448.03x = 424,278.86 × 171,490.78
  4. Step 4: Simplify right side
    307,448.03x = 72,759,912,638.91
  5. Step 5: Solve for x
    x = 72,759,912,638.91/307,448.03
  6. Step 6: Final answer
    x = 236,657.60

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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.