Home / 515,424.51-773,247.80-155,565.23

Finding the Fourth Proportional to 515,424.51, 773,247.80 and 155,565.23

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Solution

The fourth proportional to 515,424.51, 773,247.80 and 155,565.23 is: 233,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,424.51 : 773,247.80 = 155,565.23 : x
  2. Step 2: Convert to fraction form
    515,424.51/773,247.80 = 155,565.23/x
  3. Step 3: Cross multiply
    515,424.51x = 773,247.80 × 155,565.23
  4. Step 4: Simplify right side
    515,424.51x = 120,290,471,853.99
  5. Step 5: Solve for x
    x = 120,290,471,853.99/515,424.51
  6. Step 6: Final answer
    x = 233,381.36

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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.