Home / 515,422.51-773,244.80-155,563.23

Finding the Fourth Proportional to 515,422.51, 773,244.80 and 155,563.23

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Solution

The fourth proportional to 515,422.51, 773,244.80 and 155,563.23 is: 233,378.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,422.51 : 773,244.80 = 155,563.23 : x
  2. Step 2: Convert to fraction form
    515,422.51/773,244.80 = 155,563.23/x
  3. Step 3: Cross multiply
    515,422.51x = 773,244.80 × 155,563.23
  4. Step 4: Simplify right side
    515,422.51x = 120,288,461,373.92
  5. Step 5: Solve for x
    x = 120,288,461,373.92/515,422.51
  6. Step 6: Final answer
    x = 233,378.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.